Bathroom waste pipes

[johnst]

Is it OK to connect basin,bath and shower pipes into the toilet waste pipe before it enters the soil stack?

 

[Ermintrude]

Not unless you love a gurgle !

 

[Gray0689]

Is it all in to soil manifold

 

[johnst]

Is it all in to soil manifold

Thanks . Please see attached sketch (obviously not to scale) but hope you get the idea.

 

[Gray0689]

I'd be taking them all out separate to outside from your drawing

 

[lame plumber]

your bathroom could end up be very smelly if the traps are sucked clear!

 

[Chalked]

Not the best way to do it. It would be best to take them out separately. But if this is not feasible, you could do it your way by fitting an air admittance valve at the end of the run. It would work but depending on how much fall you have, the bath or basin could back up or suck out the shower trap!

 

[Mike Jackson]

Use a HepVO valve on one of the wastes and it will act as an AAV and stop the water being sucked out of the traps

 

[Ermintrude]

I hate fanny traps

 

[Chalked]

Do you hate faxxxys too?

 

[mutley racers]

Use a HepVO valve on one of the wastes and it will act as an AAV and stop the water being sucked out of the traps

So just the one hepvo will solve it?

 

[Ermintrude]

Fax machines ? Or flexis ? Yes to both. If you must use non rigid pipe work use a soeedfit to tap conn and a full bore ISo at tuther end

 

[johnst]

Not the best way to do it. It would be best to take them out separately. But if this is not feasible, you could do it your way by fitting an air admittance valve at the end of the run. It would work but depending on how much fall you have, the bath or basin could back up or suck out the shower trap!

Thanks.
Someone has suggested fitting a HepVO valve on one of the wastes.
Will this do the same job as fitting an Air AdmittanceValve?

 

[Gray0689]

Do it properly do it once mate

 

[Mike Jackson]

When Hepworth submitted the HepVO valve to BRE for testing they also tested it an AAV and it surpassed the performance requirements for a 4" AAV.