Pour 3 4 gallon of cold water into a bucket then add 3 cups of caustic soda and stir it well.
Sink will not drain not clogged.
Installing an air admittance valve on the sink will probably.
If those don t work move on to more involved options below to fix your clogged bathroom sink.
It will begin to fizz and heat up.
Allow your sink to drain completely.
If you have a slow running drain this may take some time.
While it s usually no cause for alarm a slow draining sink can be quite annoying.
If the sink does not drain the clog may rest farther up the pipe.
Food grease and other debris may be stuck in the pipe causing your sink to drain slowly or not at all because the water hits a snag on its way down.
Unscrew the connectors on the pvc pipe that holds the p trap the curved piece of pipe to the vertical and horizontal drain pipe.
If your kitchen sink won t drain not clogged several reasons might be the root cause of the problem inclusive of man made and natural substances.
So whenever you do suffer from kitchen sink drain malfunction chances are it is because of one the following factors.
If an individual sink vent is blocked that sink won t drain properly but it might not affect any other part of your drain system.
If you can remove debris from the trap reconnect it then run water into the sink.
Place a pan or bucket underneath the drain to catch any water or debris that may fall out.
The following will teach you how to unclog a bathroom sink that will not drain properly.
Unfasten the p trap from the drainpipe and clear out anything that is stuck.
Extend the auger cable into the drain opening.
Bathroom sinks often have clogged or slow moving drains this presents itself as the bathroom sink won t drain properly.
When you feel it bump up against the clog pull out about 12 inches more of the cable and tighten the setscrew on the auger canisters.
Check the drain trap for clogs.
This task can get a little messy so you might want to prepare yourself with gloves goggles and towels.
The p trap is at the curve of the drainpipe under the sink usually inside a cabinet.
How to unclog slow draining kitchen sink not clogged with caustic soda caustic soda sodium hydroxide can be used to unclog your kitchen sink.
It may be necessary to clean your kitchen drain s p trap to clear the clog.
If the plunger did not clear the clog try a sink auger also called a drum or canister auger or a drain cleaning snake.