Frequently Asked Questions
Browse or search standard plumbing questions to troubleshoot issues and understand service practices.
Q: What is the lifespan of copper versus PEX plumbing pipes?
A: Copper pipes typically last between 50 to 70 years under optimal water conditions, but can corrode from high acidity. PEX pipes are highly flexible, resistant to freezing and scale build-up, and have a lifespan of 40 to 50 years.
Q: What should I do if my walls have damp spots but no visible leaks?
A: Damp spots are a tell-tale sign of a pinhole leak or failing pipe behind the drywall. Left unaddressed, it can cause major structural rot and black mold. You should immediately turn off your water and call a licensed plumber with specialized leak detection equipment to locate and repair the line before major damage occurs.
Q: Why do my pipes rattle loudly when I turn on the hot water?
A: Loud pipe rattling can indicate loose copper pipe hangers behind the walls, failing pressure regulators, or thermal expansion stresses. Because loose pipes will eventually rub against studs and develop major leaks, you should call a professional plumber to secure the pipes and check your home's water pressure.
Q: How do I choose between a single-bowl and double-bowl kitchen sink?
A: Single-bowl sinks are excellent for washing large pots, pans, and baking sheets. Double-bowl sinks allow you to separate tasks (e.g., soaking dishes on one side and rinsing vegetables on the other). Choose based on your primary kitchen habits.
Q: How do I fix a hairline crack in my porcelain toilet tank?
A: Porcelain toilet tanks cannot be reliably repaired once cracked. Hairline cracks are highly unstable and can suddenly burst under pressure, flooding your bathroom with hundreds of gallons of water. If you notice any crack, you should shut off the toilet water line and call a professional plumber to install a replacement toilet.
Q: What is the difference between a round and elongated toilet bowl?
A: Round bowls are shorter (typically 16.5 inches from mounting holes to front) and fit better in small half-baths. Elongated bowls are longer (around 18.5 inches), providing extra thigh support and a more comfortable seating experience.
Q: Why is my garbage disposal leaking from the bottom of the unit?
A: Leaking from the bottom of the disposal housing indicates the internal seals have failed and the motor is now exposed to water. The unit cannot be repaired and must be replaced. Call a professional plumber to disconnect the electrical lines, remove the unit, and install a replacement disposal.
Q: What causes a rattling noise in my pipes when I turn off water?
A: This noise is known as 'water hammer'. It occurs when high-pressure water suddenly stops flowing, creating a shockwave. It is caused by worn-out air chambers or a missing water hammer arrestor in the pipe system.
Q: What causes low water pressure throughout the entire house?
A: Common causes of whole-house low water pressure include a faulty pressure regulator valve (PRV), a partially closed main water shut-off valve, hidden pipe leaks, municipal supply issues, or mineral build-up inside older galvanized steel pipes.
Q: What does it mean if my faucets sputter air when turned on?
A: Air sputtering from faucets can indicate a crack in your main water service line, a failing municipal supply line, or a serious problem with a private well pump. Because identifying the entry point of the air requires pressure testing the entire line, you should call a licensed plumber to diagnose and repair the source.
Q: Why is my garbage disposal humming but not spinning?
A: A humming disposal is receiving power but has jammed blades. Turn off the power switch, unplug the unit, and use an Allen wrench in the bottom center socket to manually rotate the motor shaft and clear the jam (such as a bone or coin).
Q: Why is my toilet constantly running?
A: A running toilet is usually caused by a degraded flapper valve that no longer seals properly, a fill valve that is set too high (causing water to escape into the overflow tube), or a broken lift chain that keeps the flapper from closing fully.
Q: Why is there a sewage odor coming from my basement or floor drain?
A: This usually happens when the P-trap has dried out or there is a crack in your sewer vent line behind the walls. If pouring water down the drain does not resolve the odor, you have a leaking vent line releasing hazardous sewer gases into your home. Call a professional plumber to perform a smoke test and repair the plumbing system.
Q: Can I replace the heating element in my electric water heater myself?
A: While some DIYers attempt this, electric water heaters require working with 240-volt electrical connections and draining high-temperature water. If done incorrectly, it can cause severe electrical shock, fire, or tank failure. It is highly recommended to call a professional plumber to handle the replacement safely.
Q: How long does a standard residential water heater last?
A: Standard tank water heaters typically last between 8 to 12 years. Tankless models can last up to 20 years with proper maintenance. Regular flushing to remove sediment build-up will extend its operational lifespan.
Q: What are the benefits of a tankless water heater?
A: Tankless water heaters provide endless hot water on demand, are more energy-efficient since they do not keep water hot in a storage tank, take up significantly less physical space, and generally last twice as long as traditional tank models.
Q: What should I do if my water heater is leaking from the bottom of the tank?
A: A leak from the bottom of a steel tank indicates the inner lining has corroded and failed. There is no DIY patch for this issue. You should immediately shut off the cold water supply valve, turn off the power breaker (or gas valve), and call a licensed plumber to replace the water heater.
Q: Why does my water heater make a rumbling sound?
A: Rumbling noises are typically caused by sediment buildup at the bottom of the tank. As the water boils beneath the sediment layer, steam bubbles burst through, creating the noise. Flushing the tank annually can remove the sediment and eliminate the sound.
Q: Why is my gas water heater pilot light repeatedly going out?
A: A pilot light that won't stay lit is usually caused by a faulty thermocouple, a clogged pilot orifice, or a failing gas control valve. Working with gas control systems requires specialized safety training. You should call a licensed gas plumber to inspect and replace the faulty components safely.
Q: Why is my hot water running out so quickly?
A: This can be caused by a broken dip tube inside the water heater (which channels cold water to the bottom for heating), a failing lower heating element in electric models, excessive sediment build-up occupying water space, or a tank size that is too small for your household's demand.