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Q. I am having a problem with a shower valve in a bathroom remodeling project. When you turn the water all the way to hot and then back off to around the middle of the temperature range, you get a pulsating water flow from the shower head and severe, loud knocking from the shower pipes in the wall...
Dependable rural water supply starts with sizing the pump and using high-quality fittings. A master plumber explains the details.
Q: The municipal storm drainage system in our city shares pipes with the sewer system. During heavy rainstorms, water backs up from the municipal drain line into a customer’s basement floor drain. Is there any type of check valve that can be installed in
Q: I would like to use black polyethylene water service pipe for plumbing in the crawlspace of a house that has a black poly service line. Are there any code limitations on using polyethylene pipe?
Q: In a residential rewiring job, I am removing the existing conductors from steel flex conduit and installing new #12 solid wire, pulled through the flex conduit. Can I convert all of the existing 15-amp breakers to 20-amp breakers?
Q: What is the maximum number of 12-gauge wires permitted in 3/4-inch conduit?
Q: At several jobs, I have noticed that the electrician wires the bathroom light downstream from the bathroom GFCI receptacle. When the GFCI trips, the light goes out. Does this meet the NEC?
Q: What is an arc-fault circuit interrupter? Are they expensive? Are they subject to nuisance tripping?
Q: What’s the best way to insulate plumbing supply lines in an exterior 2x6 wall?
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