Shower waste into rain water pipe

[Nomadscuba]

Hi All. First post on here. I'm fitting a new shower and have a question regarding the shower waste.

I've determined that a rain water down pipe located close to my new shower runs directly into the main sewer.

With this in mind can I tap into this rain water pipe to connect up my shower waste and if so do I need some kind of hopper or will a strap on boss be ok ? Cheers Tony.

 

[Hugh Jaleak]

Assuming its a standard 68mm downpipe then you wont get any fitting to connect a waste pipe to it i'm afraid. The other bad news is that a hopper is not allowed under Building Regs unless as a direct replacement for an existing hopper.

Need to run new waste to either a stack or a foul water gulley.

 

[neds]

Glad you checked this runs into sewars and not rainwater/flood drains Most DIYers wont!

Unfortunately as stated there are no fittings for what you require, how far is the nearest stack?

 

[Nomadscuba]

Thanks for your replies Hugh and Neds.

The rain water down pipe is 68mm square (about 2 1/2 "). Distance from shower waste to down pipe is about 1.5 m. I'll check my local DIY store for a 'strap on boss' to suit....... cause I searched in google with alarming consequences

 

[Hugh Jaleak]

You wont get anything to fit that either i'm afraid. You need to rethink where the new waste is going to go to now!

 

[Nige F]

If you connect anything into your square rainwater pipe using a branch fitting - from your local diy store - The Water Police will find you - they are everywhere- best go to the store incognito

 

[joe-90]

Just stick a Downpipe branch into it and stick your pipe in the hole.

There is no pressure - only gravity. It's like a mini hopper. Not best practice but if it means you need less plastic pipe all over your house - why not?