DIYbanter - Plumbing wash m/c into main soil pipe?

"joey1522" wrote in message
...

I am moving our washing m/c into a utility room far away from the sink
etc the ONLY pipe near is the soil pipe that the toilets and bathroom
waste goes into. this is located behind a wall the other side of which
is a garage. question is do i need to put a ubend in any where to
prevent smells coming back thru pipe. Hope it makes sense...thanks.

joey1522

"do i need to put a ubend in any where to prevent smells coming back thru
pipe?" Boy do you. Sewer gases are explosive, not just smelly, so a water
trap to stop the gasses is absolutely essential on a main soil stack pipe.

Make sure you run the connector pipework downhill toward the main stack to
stop smelly, dirty water climbing back in the washing if the pipe gets
slightly blocked.

I would think you'd need a BOSS connector, if it's plastic, for the big main
stack pipe, in either cast iron or plastic depending on what material the
main stack pipe is made. A length of pipe of around 40 mm in diameter to go
between the BOSS and the new U trap, or stand pipe as it's sometimes called,
for the machine, and through the wall. And some bends and other small
fittings to suit this type of job.

It would also help if you had a proper drill which could cut the wall out
with right sized hole for the 40 mm pipe to slip through, but these can be
hired quite cheaply for a day.

So. You will need:

One of these:
http://www.marleyplumbinganddrainage...w_design04.gif if the big
pipe is plastic.

and a read through this site:
http://www.marleyplumbinganddrainage...w_design.asp#i

to get you going in the right direction.

Good luck with it.