DIY Doctor

Shower waste pipe replacement in loft conversion

Postby Phil909221 » Wed Oct 07, 2020 1:26 pm

I'm replacing a shower tray and I've discovered that the waste pipe runs approximately 25cm below the floor (it's a loft conversion with a deep cavity between the old ceiling and the new floor). The previous solution was a 90deg bend pointing straight down from the waste, a length of vertical pipe, and then another 90deg bend to connect to the horizontal pipe. Is this an acceptable/sensible solution? I think a gradual fall is preferred but there's limited space between the joists.
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Postby stoneyboy » Thu Oct 08, 2020 9:20 pm

Hi phil909221
There should not be any problems repeating the original. Do support the lower 90 bend so as to maintain falls on the horizontal pipe.
Regards S
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