In message , Chris J Dixon
writes
News wrote:

Interestingly, I wrote the above yesterday morning and, by the time I
used the DW later, an inch of water had built up in the bottom of the
machine again. Last night, I ran the hottest wash and afterwards, no
water in the bottom. By this morning, there is perhaps half an inch of
water in the bottom again. Time for further investigation.

Grit in the inlet valve? Or does it have some form of water
storage system to reduce consumption?

I don't know. I just wonder whether the outlet is partially blocked by
sludge, and water is getting beyond the pump but not to the drain, then
slowly draining back into the machine overnight.

The water looks clean, and there are no smells. Think I'll try Tim's
idea first. Run the DW on the hottest setting, with the filters in the
machine, but not fitted.

--
Graeme