In an earlier contribution to this discussion,
Phil L wrote:

Phil L wrote:
Yes, providing the head of water doesn't drop too low it should be
fine...bad things might happen if it drys up completely though, so
you may want to top it up from time to time

Forgot to add here

it doesn't require a fantastic amount of pressure, the machine simply
opens a valve for a set length of time, it can't 'know' how much
water has passed through in that time, unless it uses some sort of
float valve, in which case it doesn't matter how high or low the
pressure is.

It *must* use a level sensor of some sort, because it can't possibly know at
what rate the water will flow in when the valve is open - it may be mains,
or just fed from a domestic gravity feed. The flow needs to be 'reasonable'
though - it may just abort if the required level isn't achieved within a
certain time. Most washing machines will work ok when gravity fed from a
storage tank whose water level is 3 metres or so above the inlet valve.

As others have said, the output *must* go into something capable of
receiving foul water - *not* into a ditch!
--
Cheers,
Roger
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