Hi all Mate of mine recently had a new kitchen sink fitted and some pipework/drainage alterations. Work was carried out by a handyman type person My mate provided the sink and B&Q bag of fittings (pack A) I’ve used these fittings before and realise that you get a whole jumble of fittings, some you use and some you don’t - just depends on waste run. Unused bits were left under the sink It’s just that the U bend in the bag hasn’t been used and just a 90 degree fitting screwed directly to sink waste Work looks neat, solvent weld waste used, no leaks and pleasant chap, according to my mate - just I thought the U bend provides a water trap to prevent smells coming up through sink and also a ‘sump’ for debris to collect in Waste pipe exits outside wall and sits a few inches above drain grid, also pipes for washing machine and gutter downpipe are here Is this ok or not - I’m thinking not but ...... see photo...... thanks
SHould have a trap there for exactly the reasons you suggest. Easy enough to rectify though - https://www.screwfix.com/p/mcalpine-adjustable-inlet-bottle-trap-white-32mm/36251 or similar, just search SF for Bottle Trap and plenty come up.
It's probably going to function OK... but a U bend will also stop draughts from entering the kitchen via the sink... I'm not sure what the regulations are, but I don't think I'd be happy with that. Regards, Cando
Should be a 40mm bottle trap, not 32mm... https://www.screwfix.com/p/mcalpine-adjustable-inlet-bottle-trap-white-40mm/92522
I did say "or similar" could not make up my mind as to whether it was 32 or 40mm from the picture. Ihave seen kitchen sinks fitted with 32mm many times and yes, I know the recommendation is 40mm.
Thanks guys for all the input, just confirmed my thoughts that the U bend should have been used, or an alternative trap used (as suggested) Pipes are 40mm, pretty standard kitchen waste set up I can only guess that as most of the waste pipe is what was there with the previous sink, the new sink and supplied U bend didn’t line up but that 90 bend did so - took the short route the cheeky monkey Thanks again
You just beat me too it...nige.... Had one on a sink and always removing it to clean it due to smelly debis buidup. RS
OK, should have provided a link to a P trap, which what I would use... https://www.screwfix.com/p/mcalpine-adjustable-inlet-tubular-p-trap-white-40mm/46577