Metronome Posted September 22, 2022 Share Posted September 22, 2022 Hi, at the plumbing of my bath (new build flat) it appears that the soil trap seal is only 2" (as shown on pipe) instead of the 3" 75mm seal that building regulations H require for a connection to a communal soil stack. Also they've dug out the screed to fit the pipes which doesn't look right to me, I would expect some sort of sub floor to have been added to raise the bath? If anyone can provide any information I would greatly appreciate it and see if it's something I can raise on my new build insurance with Premier Guarantee Many thanks Link to comment Share on other sites More sharing options...
Temp Posted September 22, 2022 Share Posted September 22, 2022 Is it causing a problem? I think my trap is even shallower. If the stack is open vented, and nothing else connects into the pipe between the bath and the stack then I think it will probably be fine. I think digging the floor out for the trap is OK as well. You could raise the bath on a plinth but that doesn't always look great. Link to comment Share on other sites More sharing options...
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