Hi - I have two (yes two) aqualisa electric showers with the same issue. Water supply, power supply but the pressure of a Mountain goat after a full on mating season - miserable. I have had Aqualisa out a couple of times previously to replace the cartridges, under warranty, and they have generally been great. However now I just have very low water pressure although the electrics and controls seem responsive - and I’m out of warranty. I’m confident the hose is good in both units although both are used infrequently. One is now leaking from the bottom on the housing unit - I have removed the rubber drain which I suppose is a problem they anticipated. The lack of pressure is not an issue with the domestic water system and there is not the usual ‘ cartridge screech’ of previous issues. I’d be grateful for any advice as I am generally competent but an electric shower novice and not certified with domestic power.