Problem with using this sort of set-up is smells , the problem being oil fat grease etc will sit on the pipe walls between waste grate and trap , if the sinks were plumbed each having it's own trap and the WM/DW wastes discharged into their own standpipe then smells would not be an issue , traps should be fitted immediately after the waste fitting/grate in order to avoid odours.
If it were me I would use copper traps with 54mm copper discharging into a 4" LCC soil stack , caulked of course.
Would agree with comment about the single trap contraptions.
Regarding the washing machine/dishwasher wastes these are best fed into their own propper wastes but if you must do it the way in photo 1 then the hose MUST leave the connection to the trap UPWARDS preferably to the height of the sink top otherwise when the sink empties there is a real chance dirty water from sink will flow back into washing machine/dishwasher!
Over the years been to umpteen customers complaining of strong smells in kitchen.
Would agree with comment about the single trap contraptions.
Regarding the washing machine/dishwasher wastes these are best fed into their own propper wastes but if you must do it the way in photo 1 then the hose MUST leave the connection to the trap UPWARDS preferably to the height of the sink top otherwise when the sink empties there is a real chance dirty water from sink will flow back into washing machine/dishwasher!
Over the years been to umpteen customers complaining of strong smells in kitchen.
i think this has been happening with the current setup as they had 'smell issues' with the washing machine
i know the kit i'm looking to buy has raised a few eyebrows on here which i understand for those that have a greater understanding of plumbing, but if i was to try it, and looking at the sections i'd be connecting the washing machine and dishwasher wastes to, do you reckon water will find it's way back when sinks are emptying?
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