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.
Kitchen sink leak repair.
The drain could be the cause of your kitchen sink leaking.
Repairing a leak under the kitchen sink can be as simple as tightening a connector piece but it can also be far more complicated requiring large replacements or professional repairs.
However the putty can be too thin to start with or it might dry out over time.
Occasionally the leak may come from an old and worn out drain that is beyond repair.
Removal preparation and replacement of a basket strainer and repair of a punctured stainless steel sink using jb weld two part epoxy.
A kitchen sink faucet leaking underneath your cabinets or a dripping drain pipe is certainly annoying but being able to spot the leak early helps prevent serious damage.
Turn on the faucet and leave open allowing the remaining water in the line to empty into the sink.
In some cases the leak may not be simply from a faulty connection but from a corroded p trap which is the bent section in a pipe that keeps the nasty gasses from returning back up the pipe.
Leave the water in place and check beneath the sink to see whether any is escaping.
A drain is usually sealed with plumber s putty to prevent further leaks.
Use locking or adjustable pliers to reach next to the drain and turn the nut hopefully sealing off the leak.
Go under the cabinet with a flashlight and inspect the faucet hoses.
If the leak is coming from a pressurized water hose spray will probably be immediately apparent.
Plug the drain with the stopper and turn on the faucet until the basin is filled with about an inch of water.
To identify where the leak is coming from just plug your sink with the drains cover.
Start by placing a dry empty bucket beneath the sink where you believe the kitchen sink leak originates.
Bar sink sized basket.
You may see water dripping or spraying from a faucet connection and if so there s your leak.
If there aren t individual shutoff valves under the sink shut off the water supply for the house.
If the leak is coming from a drain line however you might not notice it until you use the sink.