Day from Hell

[smudger]

Went to fix the waste on a 1 & 1/2 bowl kitchen sink. Water filling main sink when 1/2 used or WM empties. Assumed problem was due to slow water escape. Both waster go into 1 1/2 P trap with spigot. Fall was poor and out let after P seemed too close to base of main sink. Cut out (solvent) existing waste set-up and refitted with better fall. Limited to what I could do without removing kitchen units. Problem slightly better but not resolved (so can't charge yet). My options (I think) are to either; extend downpipe into U thereby lowering height of the outlet pipe or b) separating wastes so that main waste and wm go into one p trap and 1/2 sink joins waste further down. I would really appreciate any advice / ideas from experience guys as I would like to sort it properly ( I don't feel I can charge the guy until its sorted).

 

[Dannypipe]

Not sure exactly what you've done, but these things can be a pain. I often curse when you get the Franke combined traps for this situation as they're a chore.

Easiest thing is to fit a trap to each waste, make sure that they both fall into a tee from a vertical drop, i.e so they can't back fill one another.

Don't know what else to suggest. Above always works for me.

 

[Henno82]

i agree, this is funny enough what i fitted in my own home and have had no problems

 

[tackleburger]

I always use a MacAlpine 1 1/2 bowl trap and they have never failed me. I doubt your problem is with with the trap anyway although I have seen them fitted the wrong way round with the trap fitted to the half bowl which is just stupid.

I rekon you have an issue with the waste pipe that leaves the sink it sound like it is restricted to me. Did you ask the history?

 

[johnmcginty]

Had one similar today mate firstly check the pipe outside where it runs into drain and blast through with power plunger and see if owt comes out.