Hi all, can you use a negative head shower pump on a system that doesn't actually require a negative head pump. I want to get a pump for 2 bathrooms so was looking at the Stuart turner 3 bar monsoon range, seen a couple of N/head ones on Ebay going reasonable. I would assume that they could be used on a positive head system as even in a negative system there may be outlets on the positive side. many thanks for any help
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