Hi, i'm hoping someone can help me, i'm installing a bath into my wet room, the sink waste runs down past my bath so would be ideal for me to tap into for my bath waste (cancels out alot of drilling and pipe laying etc) but the sink waste is 32mm, is it ok to drop my bath waste down from 40mm to 32mm and tap in? I've currently got a shallow bath trap and a run of the mill sink trap, would i encounter any issues, siphoning etc? My other options are to keep my bath at 40mm and up my sink waste to 40mm, but Will be more difficult, or my bath is sat over my shower drain hole (all pipes etc sunk and unable to dig up) could i just run my bath waste to that and seal in? or finally run a separate waste pipe for my bath and sink?
Any help would be great, cheers[/code]
Any help would be great, cheers[/code]