Ideally I need a P trap where the outlet through the wall is about an inch higher than standard, and the telescopic version only seems to lower the outlet. Trying to avoid chopping a new hole through the wall if possible, but I can't think of another way. I don't want to lower the carcass by an inch as I'm quite tall, and sometimes I have to do the washing up. Any workarounds?
HepVO? with knuckle adaptor will go "straight" out...
Cheers JimK
I don't understand! Surely, you'd have to *raise* the carcass to get the trap outlet to line up with the hole in the wall?
Would a U-bend be any better than a P-trap?
Thanks. Looks promising, but can't quite visualise it in conjunction with a p trap. Does it replace the 90 deg section?
replaces the whole trap... it *is* the trap ;>)
Cheers JimK
Yes - knuckle is a 90 degree bend. Follow with a Hepvo on the horizontal as you head for the wall hole.
Hang on, let me think about this. New sink is an inch shallower than the previous one, so the waste outlet pipe will be an inch higher. If the carcass was an inch shorter, it would line up. I think
Dunno. Is it a trap?
>
Yes.
In fact, you can manufacture your own traps out of solvent weld bends - I did this where I wanted a 50mm trap for my machines slightly downstream of the upstand pipe.
If you include a swept tee in place of one of the bends you have a way to clear the trap with wire.
Then you can assemble to any geometry you like.
Here you go:
Unconventional but works better than many stock traps...
You may want to access this photo without the https if your browser is locked down...
Yah. I normally trim that... Side effect of Gallery2 - likes to default to https:// in case I log in (!)
In that case, the outlet from a standard trap is going to end up too
*high* for the hole in the wall, and you want one with a *lower* outlet- which is opposite to what you originally said.
If that puts the Hepvo too far back, as it did with a sink that I fitted (half of the trap would have been in the wall!), bring the 90 deg. knuckle forwards and put in 180 deg. of adaptor(s) then the Hepvo will stay inside.
Using a Hepvo also frees up a lot of space on the top shelf. The 1.5 sink that I fitted had 2 traps(can't see any point in that) and most of the shelf seemed to be occupied; the Hepvo leaves space under itself as well.
It's probably time I bit the bullet, took the old sink out, and offered the new one up. Seems like advance planning doesn't work with wastes.
Right. Got it now :-)
In which case a telescopic P trap should work, except that the shortest it can be is over an inch longer than the standard.
It must all be doing my head in.
My last 1.5 sink had one trap. I regularly considered fitting two when the gunge in the pipe between the sinks began to fester. The only cure was dismantling and cleaning (with clothespeg attached to nose).
Current sink seems to be a better arrangement as it hasn't gunged up in the
18 months it has been fitted. Can't understand why the last one was a problem but it was, the gunge attached to the top of the pipe and couldn't be reached with bleach or other cleaners.
I guess that the main outlet is generally from the 1-sink and the .5-sink gets little throughput, so the 'water' has time to fester. I have the same trouble with the basin in the bathroom (and the bath to some extent) as the volumetric rate is v. low and the traps never get flushed through.
When I get the tuit, I'll fit just 1 Hepvo to the pipe below the T and then there'll be no water held in captivity.
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