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Came across this product whilst looking for something else on Google the other day... http://www.showerpowerbooster.co.uk I remember seeing the inventor on Dragons Den. I don't think it went to well but I don't trust contrived TV productions personally, I know how they work! The product looks...

Hello, We are in a 3 floor new build property. The top floor bathroom has an electric shower which is always at pretty low pressure, and drops below the cut out level when any otherp tap in the house is open, making the shower unusable. I was wondering if it is possible to fit a booster...