Is there not a spec with it for minimum head? Negative head pumps are
available for where needed.

*IMHO, there's only one make worth considering for a decent life - Stuart
Turner.


Hiya David, There spec says the shower head should be 230mm below the
water level in the cold water tank in the loft which it easily is, the
only diff is that in the diagrams, the pump is next to the hot water
tank and not in the loft and it does say it should be Ideally by the
tank

Sounds like the shop sold me the wrong one or should this still work
anyway

Thanks,
Spence.