In an earlier contribution to this discussion,
DJC wrote:

wrote:
Any clues or tips?

The varous pumps are only improving the flow, what you need is higher
pressure.
You could try raising the pump so the flow from the pump isn't uphill.


Unless he raises the basin from which the pump gets its water, that will
achieve nothing - the pump still has to lift the water through the same
vertical distance.
--
Cheers,
Set Square
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