Washing machine plumbing - help please

Washing machine plumbing - help please

Author
Discussion

TooMany2cvs

29,008 posts

127 months

Saturday 3rd February 2018
quotequote all
Plate spinner said:
Bought a hose extension, drilled the carcass so I could route the waste pipe up under the sink and put an appliance tee into the existing trap set up.
Ran a cycle and it all worked, no leaks... but the W/M waste has enough flow pressure to defeat the u bend capabilities and starts to pool water upwards into the 1/2 sink!!! It then retreats again when the pump stops and the u bend can handle the flow. I checked when taking it apart - it’s all clean and no sludge or blockages.
Sounds like the pipework's simply too restrictive for some reason - the sink should empty bloody quickly.

Think about it - the waste is larger diameter than the washing machine hose, isn't it...?