Pouring Salt Down the Drain: Good or Bad Idea?

Pouring salt down the drain is a practice some homeowners adopt, often with the intention of unclogging drains, but the effectiveness and safety of this method are subjects of debate. Sodium chloride, the chemical compound present in the salt, is believed by some to act as a natural drain cleaner; however, plumbing systems, especially those in older buildings, might suffer corrosion due to the introduction of excessive salt. Environmental Protection Agency (EPA) guidelines often caution against introducing high concentrations of salts into wastewater streams because of the potential to disrupt water treatment processes. Alternative methods for drain maintenance, such as using enzymatic drain cleaners, are considered by the Drain Cleaning Association as safer approaches.

The Foundation Beneath Our Feet: Unveiling the Importance of Plumbing and Drainage

Plumbing and drainage systems constitute the intricate network that silently underpins modern civilization. They are the veins and arteries of our homes and cities.

Often concealed from view and taken for granted, these systems are responsible for delivering clean water and removing waste. Their functionality is absolutely crucial for public health, environmental protection, and the overall sustainability of our communities.

The Silent Guardians: Why Plumbing Matters

The effective operation of plumbing and drainage systems is not merely a matter of convenience. It’s a necessity.

These systems directly affect our health by preventing the spread of waterborne diseases and ensuring access to potable water.

Compromised plumbing can lead to contamination, creating breeding grounds for bacteria and viruses. Such contamination could have severe consequences for vulnerable populations.

Understanding the Risks: A Proactive Approach

Ignoring the potential vulnerabilities within our plumbing and drainage infrastructure can have extensive and costly repercussions.

From minor leaks to catastrophic failures, the consequences can range from increased water bills and property damage to significant environmental hazards and public health crises.

Therefore, a thorough understanding of the factors that impact the lifespan and efficiency of these systems is vital. It is important not only for homeowners but also for policymakers, urban planners, and environmental scientists.

Navigating the Complexity: A Roadmap for Exploration

This section aims to shed light on the unseen world of plumbing and drainage. It underscores the importance of proactive maintenance and informed decision-making.

It seeks to explore the critical aspects that contribute to the health and longevity of these essential systems. It is important to address materials, degradation processes, consequences, regulations, and prevention strategies.

Material Matters: Understanding Plumbing Components and Their Weaknesses

The longevity and reliability of any plumbing system are inextricably linked to the materials from which it’s constructed. Understanding the inherent strengths and weaknesses of these materials is crucial for preventing failures and ensuring long-term performance.

This section delves into the properties of commonly used plumbing materials, highlighting their vulnerabilities and the conditions that can accelerate their degradation.

Copper Pipes: The Double-Edged Sword of Durability

Copper pipes have long been favored for their durability, resistance to high temperatures, and inherent antimicrobial properties. Their widespread adoption stems from a history of reliable service.

However, copper is not impervious to degradation. Under specific water conditions, particularly those with low pH (acidic) or high levels of dissolved salts, copper pipes can undergo corrosion. This corrosion can manifest in several forms.

One common issue is pitting corrosion, which creates small, localized holes that can eventually lead to leaks. Another concern is erosion corrosion, caused by high water velocity or turbulence.

Furthermore, certain chemicals found in cleaning agents or even naturally occurring in some water supplies can accelerate copper corrosion. The presence of ammonia or sulfides, for instance, can aggressively attack copper pipes.

Therefore, while copper boasts considerable advantages, careful consideration of water chemistry and potential chemical exposure is paramount for maximizing its lifespan.

Cast Iron Pipes: A Legacy of Corrosion

Cast iron pipes, once a mainstay in older plumbing systems, present unique challenges. While robust in terms of physical strength, cast iron is highly susceptible to corrosion, especially when exposed to moisture and oxygen.

Over time, the interior of cast iron pipes can develop extensive rust and scale buildup. This not only reduces water flow capacity but also compromises water quality.

The corrosion process can leach iron into the water supply, leading to discoloration and an unpleasant taste. In severe cases, the structural integrity of the pipe can be compromised, resulting in leaks or even complete failure.

Replacing corroded cast iron pipes can be a significant undertaking, often requiring extensive excavation and disruption. The presence of lead in the joints of older cast iron systems adds another layer of complexity, posing potential health risks if not handled properly.

PVC Pipes: Modern Advantages, Lifespan Considerations

Polyvinyl chloride (PVC) pipes have become a ubiquitous component in modern plumbing systems, prized for their affordability, ease of installation, and resistance to many types of corrosion.

PVC is widely used for drainage, waste, and vent (DWV) applications, as well as for cold water supply lines. Its chemical inertness makes it resistant to many of the corrosive agents that can damage metal pipes.

However, PVC is not without its limitations. It is susceptible to degradation from prolonged exposure to ultraviolet (UV) radiation. Therefore, PVC pipes should be shielded from direct sunlight whenever possible.

While PVC generally has a long lifespan, its long-term performance can be affected by factors such as water temperature, pressure, and the presence of certain chemicals. It’s also worth noting that PVC is less resistant to high temperatures than metal pipes, limiting its use in hot water applications.

In conclusion, selecting the appropriate plumbing materials requires a comprehensive understanding of their properties, potential vulnerabilities, and the specific conditions to which they will be exposed. A cautious approach, coupled with regular inspections and maintenance, is essential for ensuring the longevity and reliability of plumbing systems.

Water Quality: A Silent Threat to Plumbing Health

The quality of water flowing through plumbing and drainage systems exerts a profound influence on their lifespan and operational efficiency. What might seem like a purely aesthetic concern can, in fact, trigger a cascade of detrimental effects that compromise infrastructure integrity.

Understanding the nuances of water quality, particularly in relation to hardness and the use of water softeners, is paramount for mitigating potential damage.

The Hard Truth About Hard Water

Hard water is characterized by elevated levels of minerals, primarily calcium and magnesium. While these minerals are not inherently harmful to human health, their presence poses significant problems for plumbing systems.

The most visible consequence is scale buildup, a hard, chalky deposit that accumulates on the interior surfaces of pipes, water heaters, and fixtures. This scale restricts water flow, diminishing system efficiency and increasing energy consumption.

Over time, the cumulative effect of scale buildup can lead to premature failure of plumbing components, necessitating costly repairs or replacements.

Furthermore, the reduced water pressure caused by scale can compromise the performance of appliances such as dishwashers and washing machines. Therefore, addressing hard water issues is not just a matter of convenience, but a prudent investment in maintaining the longevity and effectiveness of plumbing infrastructure.

Water Softeners: A Double-Edged Sword

Water softeners are commonly employed to combat the negative effects of hard water. These devices utilize an ion exchange process to replace calcium and magnesium ions with sodium or potassium ions.

While effective at preventing scale buildup, the use of water softeners introduces its own set of considerations, especially concerning environmental impact.

The Salinity Question

Traditional water softeners rely on sodium chloride (NaCl) to regenerate the resin beads that perform the ion exchange. This process results in the discharge of brine—a highly concentrated salt solution—into the drainage system.

The introduction of excessive salinity into wastewater can disrupt the delicate balance of microbial ecosystems within septic systems and municipal wastewater treatment plants.

This disruption can impair the efficiency of these systems in breaking down organic waste, potentially leading to environmental contamination.

Potassium Chloride as an Alternative?

Potassium chloride (KCl) is often touted as a more environmentally friendly alternative to sodium chloride. While potassium is indeed a nutrient for plants, excessive amounts can still have detrimental effects on aquatic ecosystems.

Moreover, the long-term impact of increased potassium levels in wastewater on soil composition and plant health remains an area of ongoing research.

Therefore, while potassium chloride may offer some advantages over sodium chloride, it is not a panacea and should be used judiciously.

Responsible Water Softener Usage

The responsible use of water softeners requires a holistic approach. It is important to optimize softener settings to minimize salt consumption and brine discharge.

Consideration should also be given to alternative water treatment technologies, such as template-assisted crystallization (TAC), which prevent scale buildup without adding chemicals to the water supply.

Regular maintenance and monitoring of water softener performance are essential to ensure optimal efficiency and minimize environmental impact.

By carefully considering the trade-offs associated with water softening, homeowners and municipalities can make informed decisions that protect both their plumbing infrastructure and the environment.

The Degradation Process: Corrosion, Oxidation, and Scale

[Water Quality: A Silent Threat to Plumbing Health
The quality of water flowing through plumbing and drainage systems exerts a profound influence on their lifespan and operational efficiency. What might seem like a purely aesthetic concern can, in fact, trigger a cascade of detrimental effects that compromise infrastructure integrity.
Understanding…]

Understanding the mechanisms by which plumbing systems degrade is paramount to ensuring their longevity and reliability. Several interconnected processes contribute to this deterioration, each with distinct characteristics and impacts. Among the most significant are corrosion, oxidation, electrolysis, and the buildup of scale.

Understanding Corrosion

Corrosion is a complex electrochemical process that gradually destroys materials, typically metals, through chemical reactions with their environment. In plumbing systems, corrosion primarily affects copper and cast iron pipes, leading to weakening, leaks, and potential contamination of the water supply.

Corrosion in Copper Pipes

Copper pipes, while generally durable, are susceptible to corrosion under specific conditions. Acidic water (low pH) can dissolve copper, leading to pinhole leaks. The presence of certain ions, such as chlorides and sulfates, can also accelerate the corrosion process.

Corrosion in Cast Iron Pipes

Cast iron pipes, commonly found in older plumbing systems, are particularly vulnerable to corrosion due to their iron composition. When exposed to water and oxygen, iron oxidizes, forming rust (iron oxide). This rust weakens the pipe structure over time, potentially leading to significant leaks and even pipe failure.

The Role of Oxidation

Oxidation is a key chemical reaction in the corrosion process. It involves the loss of electrons from a metal atom, leading to the formation of metal ions. These ions then react with other elements in the environment, such as oxygen or water, to form oxides or other corrosion products.

The rate of oxidation is influenced by factors such as the presence of oxygen, temperature, and pH of the water. Controlling these factors can help slow down the oxidation process and extend the lifespan of plumbing components.

The Impact of Electrolysis

Electrolysis, or galvanic corrosion, occurs when two dissimilar metals are in contact within an electrolyte (such as water). A flow of electrons is established between the metals, with the more active metal corroding at an accelerated rate.

Stray electrical currents from nearby appliances or grounding systems can exacerbate electrolysis, leading to rapid pipe deterioration and potential leaks. Ensuring proper grounding and avoiding direct contact between dissimilar metals in plumbing systems can help prevent electrolysis.

The Scourge of Scale

Scale buildup is a common problem in plumbing systems, particularly in areas with hard water. Hard water contains high concentrations of minerals such as calcium and magnesium. When heated, these minerals precipitate out of the water and form a hard, crusty layer on the inside of pipes and fixtures.

Scale reduces water flow, decreases energy efficiency, and can damage appliances. Descaling, a process of removing scale buildup, can be achieved through chemical treatments or physical methods. However, prevention is always preferable, and water softeners are often used to reduce mineral content.

Consequences and Ripple Effects: From Leaks to Environmental Damage

The insidious degradation of plumbing and drainage systems, driven by material fatigue and water quality issues, unleashes a series of consequences that extend far beyond simple inconvenience. These effects ripple outwards, impacting infrastructure, the environment, and human well-being in interconnected ways. Understanding the breadth and depth of these ramifications is crucial for informed decision-making and effective mitigation strategies.

The Direct Impact on Plumbing and Drainage Systems

The most immediate consequences of degradation manifest within the plumbing and drainage systems themselves. Reduced water flow is a common early indicator, often stemming from scale buildup or corrosion that constricts pipe diameters.

This diminished flow not only reduces efficiency but also places additional strain on pumps and appliances.

The increased risk of leaks and pipe failures represents a more severe stage of degradation. Corrosion weakens pipe walls, rendering them vulnerable to bursting under pressure.

These failures can lead to significant water damage, structural problems, and costly emergency repairs.

Ultimately, unchecked degradation necessitates expensive repairs or complete system replacements. These projects often require the expertise of qualified plumbers.

Such interventions can place a significant financial burden on homeowners and municipalities alike, especially if widespread infrastructure issues demand large-scale renovations.

Environmental Ramifications of Plumbing Degradation

The consequences extend into the surrounding environment. The release of corroded materials into the water supply presents a subtle but persistent form of pollution.

Lead, copper, and other heavy metals can leach from aging pipes, contaminating drinking water and posing health risks, particularly to vulnerable populations.

Wastewater treatment plants also bear the burden of plumbing degradation. These facilities may struggle to process unusual contaminants released from corroded pipes or improperly maintained systems.

The presence of excessive minerals, chemicals, or even pharmaceuticals can disrupt treatment processes, potentially leading to inadequately treated effluent being discharged into the environment.

Septic systems are particularly vulnerable to harm from substances they are not designed to handle.

The overuse of water softeners, which introduce high concentrations of sodium chloride (NaCl) or potassium chloride (KCl) into wastewater, can disrupt the delicate biological balance within septic tanks, hindering their ability to effectively treat waste.

Adherence to environmental regulations becomes paramount in mitigating these risks, requiring regular monitoring, proper waste disposal practices, and the adoption of technologies that minimize environmental impact.

The Human Element: Health and Financial Burdens

The degradation of plumbing and drainage systems carries significant implications for human health and financial stability.

Contaminated water poses direct health risks, exposing individuals to harmful bacteria, viruses, and heavy metals.

These contaminants can cause a range of illnesses, from gastrointestinal distress to more serious long-term health problems.

The financial burden associated with repairing and replacing damaged infrastructure falls heavily on homeowners and municipalities.

Unexpected plumbing emergencies can strain household budgets, while large-scale infrastructure projects require significant public investment.

The critical role of qualified plumbers cannot be overstated.

Proper installation, maintenance, and repairs are essential for preventing leaks, ensuring water quality, and prolonging the lifespan of plumbing systems.

Investing in skilled plumbing professionals is an investment in public health and infrastructure resilience.

Regulatory Landscape: Ensuring Water Quality and Safety

Consequences and Ripple Effects: From Leaks to Environmental Damage
The insidious degradation of plumbing and drainage systems, driven by material fatigue and water quality issues, unleashes a series of consequences that extend far beyond simple inconvenience. These effects ripple outwards, impacting infrastructure, the environment, and human well-being. To mitigate these potential harms and safeguard public health, a robust regulatory landscape is essential.

This framework involves various bodies at the federal, state, and local levels, each playing a crucial role in ensuring the integrity of plumbing systems and the quality of our water resources. It is a complex web of standards, codes, and enforcement mechanisms intended to protect us from the unseen dangers lurking within our pipes.

The Role of Regulatory Bodies

Regulatory bodies serve as the guardians of our water infrastructure. They are tasked with developing and enforcing regulations that govern everything from the materials used in plumbing systems to the treatment and disposal of wastewater.

Their overarching goal is to minimize risks associated with water contamination, system failures, and environmental pollution. This is achieved through a combination of setting standards, conducting inspections, and imposing penalties for non-compliance.

Key Agencies and Their Responsibilities

Several key agencies are instrumental in maintaining plumbing system integrity and water quality. Each body focuses on specific aspects of the overall regulatory framework.

Environmental Protection Agency (EPA)

The EPA plays a pivotal role in setting national standards for water quality and discharge. Under the Safe Drinking Water Act (SDWA), the EPA establishes maximum contaminant levels (MCLs) for various substances that may be present in drinking water.

These MCLs are legally enforceable standards that public water systems must adhere to, ensuring that the water delivered to our homes and businesses is safe for consumption. The EPA also regulates the discharge of pollutants into waterways through the National Pollutant Discharge Elimination System (NPDES) permit program. This helps to prevent the contamination of surface and groundwater resources.

Plumbing Codes

Plumbing codes are a critical component of the regulatory landscape. These codes dictate the proper installation, repair, and maintenance of plumbing systems, ensuring that they are safe, efficient, and durable. They specify the types of materials that can be used, the methods for joining pipes, and the requirements for venting and drainage systems.

Adherence to plumbing codes minimizes the risk of leaks, cross-contamination, and other problems that can compromise water quality and system performance. These codes are typically developed and adopted at the state or local level, often based on model codes developed by organizations like the International Association of Plumbing and Mechanical Officials (IAPMO).

Local Water Utilities

Local water utilities are responsible for the day-to-day operation of water treatment and distribution systems. They monitor water quality on a continuous basis, ensuring that it meets or exceeds EPA standards.

These utilities also manage wastewater treatment plants, which remove pollutants from sewage and other wastewater before it is discharged back into the environment. Their efforts help safeguard our water resources and protect public health. Furthermore, they ensure a safe and reliable supply of potable water to homes and businesses within their service area.

Challenges and Future Directions

Despite the robust regulatory framework, several challenges remain. Aging infrastructure, emerging contaminants, and increasing water scarcity all pose significant threats to the integrity of our plumbing systems and the quality of our water resources.

To address these challenges, it is essential to strengthen regulatory oversight, invest in infrastructure upgrades, and promote water conservation measures. Collaboration between regulatory agencies, water utilities, and the public is crucial to ensuring a sustainable and healthy water future for all.

Mitigation and Prevention: Proactive Steps for Long-Term System Health

The insidious degradation of plumbing and drainage systems, driven by material fatigue and water quality issues, unleashes a series of consequences that extend far beyond simple inconvenience. These effects ripple outwards, impacting not only infrastructure and finances but also human health and environmental sustainability. Fortunately, these risks are not insurmountable; a proactive approach centered on mitigation and prevention can substantially extend the lifespan and reliability of these vital systems.

This section explores key strategies for safeguarding plumbing and drainage infrastructure, emphasizing the importance of regular maintenance, the judicious use of water treatment technologies, and strict adherence to plumbing codes.

The Indispensable Role of Regular Maintenance and Professional Inspections

Perhaps the most crucial step in preserving the integrity of plumbing systems is the establishment of a routine maintenance schedule, coupled with periodic inspections by qualified plumbing professionals. Ignoring minor issues can lead to major, costly repairs down the road.

These inspections serve as early warning systems, identifying potential problems such as minor leaks, corrosion hotspots, and blockages before they escalate into significant failures.

A skilled plumber can assess the overall health of the system, identifying subtle signs of wear and tear that might otherwise go unnoticed. Regular maintenance, which may include flushing sediment from water heaters, tightening loose connections, and inspecting drain lines, can prevent the accumulation of scale, corrosion, and other contaminants that degrade system performance.

It’s important to remember that seemingly insignificant drips or slow drains can be symptomatic of larger underlying problems. Early detection and prompt repair can save homeowners and municipalities considerable expense and prevent disruptions to essential services.

Harnessing the Power of Water Treatment Technologies

Water quality is a primary determinant of plumbing system longevity. The appropriate application of water treatment technologies can significantly mitigate the harmful effects of hard water, corrosive chemicals, and other contaminants.

Strategic Water Softening

Hard water, characterized by high concentrations of minerals like calcium and magnesium, can lead to the formation of scale inside pipes, reducing water flow and efficiency. Water softeners, which remove these minerals, are a common solution. However, the choice of softening agent—either sodium chloride (NaCl) or potassium chloride (KCl)—must be carefully considered.

While sodium chloride is effective, its discharge into drainage systems can have detrimental environmental consequences, particularly impacting septic systems. Potassium chloride presents a more environmentally friendly alternative, although it may come with a slightly higher cost. The decision should be based on a comprehensive assessment of water quality, system requirements, and environmental considerations.

Filtration Systems

Beyond softening, filtration systems play a critical role in removing sediments, chemicals, and other contaminants from water supplies. Whole-house filters can protect the entire plumbing system from the damaging effects of these impurities.

Specialized filters can target specific contaminants of concern, such as lead, chlorine, and volatile organic compounds (VOCs). Regular filter replacement is essential to maintain their effectiveness.

The Importance of Professional Water Testing

The selection of appropriate water treatment technologies should be guided by professional water testing. A comprehensive water analysis can identify the specific contaminants present and inform the selection of the most effective treatment strategies.

Upholding the Standards: Adherence to Plumbing Codes

Plumbing codes are not merely bureaucratic hurdles; they are carefully crafted guidelines designed to ensure the safety, efficiency, and longevity of plumbing systems. Strict adherence to these codes during new installations and repairs is paramount.

Ensuring Proper Material Selection

Plumbing codes specify the types of materials that are suitable for various applications, taking into account factors such as water quality, pressure, and temperature. Using substandard or inappropriate materials can lead to premature failures, leaks, and contamination.

Promoting Correct Installation Practices

Proper installation techniques are equally critical. Codes dictate how pipes should be joined, supported, and protected from physical damage. Deviations from these standards can compromise the integrity of the system and create opportunities for leaks and failures.

The Ongoing Responsibility of Compliance

Homeowners, contractors, and municipalities all share responsibility for ensuring compliance with plumbing codes. Regular inspections and certifications can help to ensure that work is performed to the required standards. By prioritizing adherence to these regulations, we can collectively safeguard the integrity of our plumbing infrastructure and protect public health.

Alternative Solutions: Exploring Sustainable Options

Mitigation and Prevention: Proactive Steps for Long-Term System Health
The insidious degradation of plumbing and drainage systems, driven by material fatigue and water quality issues, unleashes a series of consequences that extend far beyond simple inconvenience. These effects ripple outwards, impacting not only infrastructure and finances but also the environment and public health. As we become more aware of these far-reaching implications, the search for sustainable solutions becomes increasingly vital.

In this context, exploring alternative plumbing practices and materials can significantly improve the longevity and sustainability of our water infrastructure.

The Environmental Impact of Water Softeners: Considering Potassium Chloride

Water softeners are commonly used to combat the detrimental effects of hard water, such as scale buildup in pipes and appliances. However, the conventional use of sodium chloride (NaCl) in these systems can have unintended environmental consequences. When water softeners regenerate, they discharge brine—a solution high in sodium—into wastewater systems.

This excess sodium can disrupt wastewater treatment processes and negatively affect aquatic ecosystems. High sodium levels in treated wastewater can inhibit the growth of beneficial bacteria essential for breaking down organic matter, reducing the overall efficiency of the treatment plant.

Furthermore, the discharge of sodium into rivers and streams can elevate salinity levels, harming sensitive aquatic life and potentially impacting agricultural irrigation.

Potassium Chloride as a Sustainable Alternative

Potassium chloride (KCl) presents a more environmentally friendly alternative to sodium chloride in water softeners. While KCl functions similarly in softening water, it offers key advantages regarding its impact on the environment.

Potassium is a vital nutrient for plant growth, unlike sodium, which can be detrimental to soil health. When water softeners using KCl discharge into wastewater systems, the potassium can serve as a beneficial nutrient for plant life in receiving waters, provided concentrations are carefully managed.

This is not to say that KCl is entirely without environmental impact. Excessive potassium can also lead to nutrient imbalances and eutrophication in aquatic ecosystems. Therefore, careful monitoring and responsible use are crucial to maximizing the benefits of KCl while minimizing potential harm.

Exploring Alternative Pipe Materials for Enhanced Longevity

The choice of pipe materials significantly influences the durability and lifespan of plumbing systems. Traditional materials, like copper and cast iron, are susceptible to corrosion and degradation, leading to leaks, reduced water quality, and costly repairs.

Alternative pipe materials, such as PEX (cross-linked polyethylene) and CPVC (chlorinated polyvinyl chloride), offer enhanced resistance to corrosion and a longer lifespan.

PEX Piping: Flexibility and Durability

PEX is a flexible plastic material that has gained popularity in residential plumbing due to its ease of installation and resistance to corrosion and freezing. Its flexibility allows it to bend around corners, reducing the need for fittings and minimizing potential leak points.

PEX is also less susceptible to scale buildup compared to copper pipes, ensuring consistent water flow and pressure over time.

However, it’s essential to note that PEX is not suitable for all applications. It is sensitive to ultraviolet (UV) radiation and should not be exposed to direct sunlight for extended periods. Additionally, some PEX products may leach small amounts of chemicals into the water, although these levels are generally considered safe by regulatory agencies.

CPVC Piping: High-Temperature Resistance

CPVC is another plastic material that offers excellent resistance to corrosion and high temperatures. It is commonly used in both hot and cold water distribution systems and is particularly suitable for applications where water temperatures may exceed the limits of PEX.

CPVC is also resistant to a wide range of chemicals, making it ideal for industrial and commercial plumbing systems.

Like PEX, CPVC is relatively easy to install and requires fewer fittings than traditional metal pipes. However, it is more rigid than PEX and may require more specialized tools and techniques for installation.

Choosing the appropriate pipe material for a specific application is critical for ensuring the longevity and reliability of plumbing systems. While PEX and CPVC offer numerous advantages over traditional materials, it’s essential to consider their limitations and select the material that best suits the specific needs of the project.

By embracing these sustainable alternatives, we can reduce the environmental footprint of our plumbing systems and ensure a more resilient and resource-efficient water infrastructure for future generations.

So, next time you’re tempted to clear a clog by pouring salt down the drain, maybe think twice! There are definitely better, and safer, options out there. Weigh the risks and rewards, and remember, sometimes the old-fashioned plunger or a call to the plumber is the best solution.