Bathroom sink leaks are usually caused by a bad drain pipe loose pipe connection or leaky sink drain flange.
Angry leak under sink.
Under sink leaks can do a lot of damage but they re usually fairly easy to pinpoint and repair.
Clean out old putty which may have previously sealed the gasket.
Lkage larry kage cmi february 2 2020 3 02pm 15.
Go under the cabinet with a flashlight and inspect the faucet hoses.
It s improper the top of the loop needs to go as high as possible under the sink to minimize backflow during backup of the drain.
I rarely see this done right.
Unscrew the sink drain.
Fill the sink with water and determine where your particular leak is located.
Angry dad sink prank 5.
The water that is damaging the cabinet or the floor may be coming from the drainpipes the supply.
Bad sink drain flange step 1.
You may see water dripping or spraying from a faucet connection and if so there s your leak.
If the faucet isn t leaking fill the sink with water then let it drain and watch for water dripping from the p trap assembly as the water flows.
This is one of the easiest problems to fix with some plumber s putty.
If your sink is leaking from a drain gasket these steps will help you fix it.