Noisy waste pipe

[BoyRoger]

I recently had a bathroom suit fitted. Everything is fine except that when water runs out the basin waste pipe it "glugs" for ages and also the drain outside the bathroom window to which the waste pipe is connected carries on going "glug" for several minutes. How could fitting a new sink to the same waste pipe cause this?

Thank for any help

Roger

 

[ChrisR]

What do you look like, wearing your bathroom suit?

Sorry couldn't resist.

Lets not be subtle. Your plumber was incompetent. You're getting one of a small number of air-lock type problems. Normally all it needs to avoid the glugging is a vented trap - which costs about £1 more than the normal ones. They have small "air admittance valves" on them so air can get in, waste side of the trap, but the pong can't get out.

Letting air in also prevents "pulling" the trap - sucking the water out.

there could be a problem with pipe sizes (how long, what diameter, or because the drains are shared (contrary to the law...(!!!!) though it's widely done), or because the pipework the water is trying to get into isn't vented, so your glugging is air coming back up the pipe. Could be a bit of a blockage - birds nest in a stack pipe...?

Either way, this is all bog standard stuff which ignorant bodgers get wrong and give plumbers a bad name. Call him back if you still have faith!

 

[ChrisR]

error - it said...

 

[ChrisR]

...several times...

 

[breezer]

What do you look like, wearing your bathroom suit?

Sorry couldn't resist.

sorry i thought that was funny too (spell checker does not know the difference between suit and suite)