While PEX (cross-linked polyethylene) pipes are flexible, cost-effective, and resistant to freezing, they have notable disadvantages. Key drawbacks include degradation from UV sunlight, susceptibility to rodent damage, chemical leaching risks, flow restrictions from inner fittings, and poor fire resistance.
Leaks and Fittings Issues
PEX plumbing uses fittings and connectors that are typically made of plastic or metal. Over time, these fittings can loosen, leading to leaks. Problems can arise with crimp rings, as improper use of a crimping tool can weaken the joints.
Generally, you can budget around $2 to $6 per square foot for a PEX repipe. So, for a 2,000-square-foot home, you might estimate a cost between $4,000 and $12,000. You can also refine your estimate by counting your plumbing fixtures.
Despite these benefits, some insurance companies have raised concerns about PEX plumbing, particularly regarding older installations: Historical issues: There were class action lawsuits against PEX manufacturers due to premature failures at connection points, resulting in leaks and flooding in some cases.
PEX (cross-linked polyethylene) plumbing typically lasts 40 to 50 years. Because it is flexible and resistant to corrosion or mineral buildup, it frequently outlasts traditional metal piping.
Yes, mice and other rodents can absolutely chew through PEX pipe. Because PEX is a flexible plastic, it is relatively soft compared to metal and is highly susceptible to damage from the continuously growing teeth of mice and rats.
PMRs for malignancies of the stomach, kidney, brain, and lymphopoietic system were also elevated, especially among plumbers. Chronic rheumatic heart disease, emphysema, liver cirrhosis, and all external causes of death were the major non-cancer causes with significantly elevated PMRs.
While PEX is highly flexible, affordable, and easy to install, it can degrade under UV light and is susceptible to rodent damage. Depending on your priorities—longevity, water purity, or structural rigidity—the primary alternatives listed below outperform PEX in specific applications.
In plumbing, the "135-degree rule" is a code standard that dictates how much a horizontal drain pipe can bend or change direction. It limits the total cumulative angle of pipe fittings before a system requires an access point (cleanout) or must be vented, ensuring proper flow and preventing chronic clogs.
Avoid making guesses or unsupported statements about what caused the damage to your property. Speculating can lead to inaccuracies in the adjuster's report, potentially affecting your claim.
Yes, you can repipe a house without removing drywall. Modern plumbers use flexible PEX tubing (Cross-linked Polyethylene), which can be snaked or "fished" through existing wall cavities, attics, and crawl spaces, dramatically reducing the need for wall demolition.
Plumbing issues caused by the natural aging of pipes or poor maintenance typically aren't covered by homeowners insurance. For example, slow leaks that develop over time from deteriorating pipes or rust are generally considered part of normal wear and tear.
Did you know that PEX piping is used in about 60% of new construction projects to date? This makes it a prevalent material used in new buildings.
Effects on Metal and PVC Pipes
While harmless for most metal and PVC pipes, prolonged exposure to the acidic nature of vinegar might corrode certain metals, like copper. PVC pipes, on the other hand, can withstand these substances without damage.
SharkBite manufactures both PEX-A and PEX-B piping. You can buy either depending on your plumbing project's needs.
Yes, a toilet and a sink can share a vent. In modern plumbing, this is most commonly done using a wet vent, where the sink’s drainpipe also acts as the vent for the toilet.
a waste pipe must be layed so it has a fall of 1 in 4 (mcguires rule).
Street 90-Degree Elbow
Street 90-degree elbows have one end designed to fit directly into a fitting or valve without a connecting pipe. They can be used when a pipe needs to be connected to a valve or fitting at an angle. They are also commonly used when changing the flow direction in underground piping systems.
PEX is cheaper than copper, both in terms of material and labor costs. The cost of PEX vs copper is particularly important for large-scale projects, such as commercial repiping, where budget constraints are a key factor. PEX is also easier to install.
Yes, PEX (cross-linked polyethylene) can freeze and burst. While its flexibility allows the pipe to expand and withstand freezing better than rigid copper or CPVC, it is not immune to bursting.
PEX-A and PEX-B are generally neck-and-neck, but they excel in different definitions of "strength." PEX-A is stronger against freezing and kinking, while PEX-B has a higher raw burst pressure and rigidity.
10 Things That Your Plumber Wishes You Knew
In November 1954, Albert Einstein famously expressed admiration for the plumbing profession, stating that if he were a young man again, he "would rather choose to be a plumber in the hope to find that modest degree of independence still available."
Plumbers face elevated risks for various occupation-specific diseases, primarily due to exposure to raw sewage, toxic airborne materials, and bacteria in stagnant water.