services for under stair washing machine

[bananaspark]

I've got to allow for services to this space before the floors go down etc...

I can get 22m pipe out to kitchen waste via a 4 metre run and 3 90 deg bends. This means a lot of standing water, but am assuming it shouldnt be a problem for blockages because final rinse is usually clear?.

bert

 

[Paul Barker]

Doesn't sound to me like it would cope with the discharge from a washing machine, I would pump it.

 

[namsag]

You will be suprised what comes of clothes as in fluff bits of cloth, gunge etc this blocks inch and a half over time so will soon block 22mm

 

[bananaspark]

ouch, I was hoping to avoid routing 1 1/4, now not even confident that will do it ??

maybe a w/machine with a really hi quality filter, if there is one. I will stay with the 22m and reduce the bend angle to 60 so i can stuff a pipe brush when required, thanx.

 

[wonderb0y]

you should realy do it in 40 mm as suggested, it will deffinatly block in 22mm pipe, 40mm washing machine pipe gets bunged up anyway so 22 is pushing it

 

[bananaspark]

hmm, after taking up some stairs, I've finally found a way to get 40mm through to the kitchen!

but...the pipe will still run flat along the floor for 3 metres and then 90 degree up for 1 ft into the waste. where would a pump need to help it along here?

 

[ChrisR]

You're asking for trouble.
Look at Saniflow pumps. Big things, and even then you can't put them on a horizontal pipe.

 

[wonderb0y]

well they need to be pumped horizontal first and then come down to the waste.

sounds like a bit of a farse just to get a washer under the stairs

 

[BoxBasher]

Are the stairs on an external wall?

You could always route the waste outside...

 

[bananaspark]

surely as long as the output of the w/m here is higher than the eventual connection to waste (1ft off floor) then gravity will take care of everything -apart from the standing water. (terraced house, no outside drain). can raise the wm if necessary

sounds like a farce indeed, but a washer just dont sit right in an all stainless steel kitchen.

 

[stem]

For some years, I lived in a house with a washing machine in an outhouse (it was part of the main building, but only had access from the outside)
I extended the rubber washing machine hose with identical diameter rubber hose which was then routed through a pantry and then behind some kitchen cupboards to the existing washing machine waste connection. This was intended as a temporary measure for a few weeks, but ended up in place for several years.

I guess it worked because the water was discharged under pressure by the washing machine pump and the speed of the water flow in the small diameter pipe kept any "solids" (ugh) in suspension and so it never blocked. Think about it. where do washing machine blockages occur, in the rubber pipe from the machine, or the fixed larger diameter pipework?

With a normal system the water discharges from the smaller diameter washing machine rubber hose into a larger diameter pipe. Basic laws of physics dictate that because of the increase in diameter, the water speed is slowed for the same flow and it is now running under gravity discharge rather than the pumped pressure of a sealed pipe.

 

[wonderb0y]

but...the pipe will still run flat along the floor for 3 metres and then 90 degree up for 1 ft into the waste.

surely as long as the output of the w/m here is higher than the eventual connection to waste (1ft off floor) then gravity will take care of everything -apart from the standing water. (terraced house, no outside drain). can raise the wm if necessary

their won't be enough force to push the waste water up after all that

stick a macerator on it if thats the setup you want, or just try it and see where the water goes

 

[bananaspark]

top idea stem, I just wasnt thinking laterally,... rubber tubing to the kitchen.
at least i can kick it if it causes trouble, unlike solvented together pvc.