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View the thread, titled "Complicated bathroom waste" which is posted in UK Plumbers Forums on UK Plumbers Forums.

Hi All,

After some expert opinions.

Moving bathroom from one room to the next.

Hopefully my drawing and pictures are clear enough.

1) is it ok to come into the bath waste line with the washing machine waste using a swept T, the vertical point at entry can actually be allot higher than I have drawn it. This provides a chance for water to backup into the bath if the boss at the soil pipe blocks up.

2) Shower - Ceiling is fairly low, so no room for raising the tray. I have managed to get the correct fall on the shower waste, and it would be entering the soil pipe above the midline. Because it is an acute angle I am unable to find a boss that allows for this angle, and any combination of 45s or 90s wouldn't match this angle.
Have seen those flexible wastes, but have been told they are prone to blocking as they are ribbed.

Any tips for allowing a degree of flexibility to where the shower tray connects, as with my current setup, it allows for no room for error upon install due to having to concrete over the pipes.

3) is it ok to come into the pan connector with the basin waste (i believe this is ok but unable to find a connector that would work with a wall hung toilet waste, as it has a special collar on the 90degree fitting to retain it to the frame)

Thanks in advance
 

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Change wc elbow for a tee and put shower and basin into that via a 2” pipe note this will have to be vented via an air admittance valve eg aav

Install a tee into the 110mm orange drain pipe for the bath and washing machine via a 2” pipe as above this will have to be vented aswell

Don’t forget 20mm of fall per meter is required for any drainage
 

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Complicated bathroom waste
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jamiew123,
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