Just moved into house fitted about 18 months ago with walk in Aquability shower. Drain pump has given endless problems and was fitted inside a wall, with no service access, by the Aquability fitter( knowing it would not be he who would have to service it!!) The installation and pipe runs and wiring are of very poor standard but the cost was apparently extortionate at over £6K!However, if it was to work properly, the shower would be very nice.