Solved

Installing Washer In Room Below Ground Level

GRGraham
Asked about 20 years ago 1,095 views
0

I need to move my washing machine into my garage where the floor is about 3 feet below and 12 feet away from the floor that contains the sink that I need to empty the machine into. Does any one have any idea whether a standard washing machine pump would cope with that or, if they won't, the best way to incorporate a secondary pump. ie in line or via a secondary tank that the machine could empty into?

Solution Summary

AI-generated from this discussion

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Washer drain pump may not cope with basement-style installation

The problem
The washing machine needed to be moved into a garage about 3 feet below the level of the sink drain and around 12 feet away, raising concern over whether the machine could pump waste water up and across that distance.
Likely cause
The accepted reply said a standard washing machine pump is generally designed to lift water about 2 to 3 feet. A total lift of around 6 feet, once hose routing is considered, would likely reduce flow too much and could cause poor rinsing or drain timeout/abort.
What fixed it
Recommended action was to avoid relying on the washer’s own pump for that lift. Suggested options were a proper booster pump system designed for basement installations, or reducing the lift by raising the machine on a secure platform. The original poster decided to install an intermediate tank with a separate secondary pump.
Checks to try
  • Estimated pump lift capability as about 2 to 3 feet
  • Considered whether the run was 3 feet total lift plus 12 feet horizontal
  • Noted the final horizontal section would need a decent fall towards the drain
Parts or tools mentioned
  • Intermediate tank
  • Secondary pump
  • Proper pump system for washing machines in basements
  • Secure platform

Safety: Any platform used to raise the appliance should be secure and arranged so the machine cannot fall off. Further diagnosis should be carried out by a suitably qualified appliance engineer.

Cause identifiedGenerated 20 Aug 2026 · AI summaries can make mistakes — read the full thread below.
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3 Answers

Accepted Answer
0
WH
WhitegoodshelpVerified Engineer
Answered about 20 years ago

A washing machine pump is designed to pump water about 2 - 3 feet. If the drain hose is fixed an extra 3 feet above the top of the washing machine it would increase the height to 6 feet and although the water would possibly pump out the flow will be substantially reduced. It's unlikely a washing machine could pump water fast enough to either rinse properly, or to not time out (and abort) on empty.

If your washing machine would only have to pump 3 feet in total, and then run 12 feet it could work although it couldn't pump the water 3 feet plus a further 12 feet so the last section would have to have a decent slope towards the drain.

You can buy a proper pump system that can pump water quite a long way, designed for washing machines in a basement needing to pump upstairs Saniflow make such pumps. Some of their pumps can allow a washing machine to pump up to 5 metres high.

Finally, raising the washing machine itself by installing it on a secure platform and hemmed in so it can't fall off can reduce the height needed to work properly.

Whitegoods Help — appliance repair expert and forum host.
0
GU
Guest Guest_Graham_*
Answered about 20 years ago

Thanks for your advice, I think that makes up my mind, I'll install an intermediate tank and a separate, secondary, pump.

0
WH
WhitegoodshelpVerified Engineer
Answered almost 13 years ago

I have an article now on this subject here - installing a washing machine in a basement

Whitegoods Help — appliance repair expert and forum host.

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