This past Friday I replaced a kitchen faucet for a friend of mine because she said her old faucet had developed a continuous drip. (It was dripping about a 1/2 gallon of water every per hour). When I was in the process of removing and replacing her old
kitchen faucet with a new one, I noticed that the hot water valve underneath her sink wouldn't shut off the water completely. It just kept bubbling up and dripping water that appeared to be consistent with the amount of water that her old faucet had been dripping.
While I performed the replacement of her kitchen faucet, I had to place a kitchen pot underneath that valve to catch the water that was constantly dripping from the valve opening. I finally had to shut off main water valve located outside of the house. Of
course, I turned on all of the faucets in the house to make sure that all of the water bled out of the lines. But oddly enough this one particular valve located underneath her kitchen sink kept dripping water at the same rate that it was dripping before, about
1/2 gallon per hour. When I completed the R&R of her kitchen faucet and opened back up all of the water valves, (the water main outside and the two valves underneath her kitchen sink) everything seemed to be working just fine. I didn't detect any dripping
underneath her sink and the new faucet was not dripping either. She just sent me an email telling me that the rand new faucet has begun to drip water just like the old faucet had been doing. How can this be happening? You would think that once all of the valves
had been opened back up, is is the job of the new faucet to control the water coming from that line? I retired a couple of years ago and ended up becoming a sort of "Jill of all Trades". I have performed quite a few minor plumbing fixes, i.e. new faucet installations,
garbage disposal installations, toilet
R&R's and repairs etc. I have never encountered a problem like this one. All of the homes in our area have a triangular shaped, galvanized steel cannister that is installed between the main water valve and the main water
pipe that goes into your home. I forget what these things are called but I know that after about 20 years, these devices can get really clogged up and can actually cause a significant reduction in the water pressure inside your home but I don't think I have
ever heard of these devices being responsible for constant dripping faucets. I noticed that my friend has never replaced the old galvanized canister valve that was installed on the pipe leading from her main water valve into the house which means this canister
valve is about 30 years old. Any thoughts or advice on finding the culprit of the constant drip occurring in the brand new kitchen faucet would be much appreciated.