In connection with the tank it is actually difficult to install
If you don't have much space, you can't build it well without accessories or craftsmanship. The pump was attached to the mounting holes provided on the Whale 8L tank. The hose connections on the pump point in the opposite direction. That can't be changed either... a 90 degree Bend is not included...If the connections are horizontal, you cannot reach the drain connection from the tank...unless you lay a large bend in the hose without a kink or wrap it around the tank once....If the connections are vertical, the intake hose must down through a board etc or the tank has to be 10-20 cm higher....so flat on the ground is not possible...I would have hoped for more. The pump starts and also pumps a moment longer before it stops again. The pump isn't that extremely quiet either, the normal electric pump was quieter. There should also be a vent on the tank... if that's not the case, the pump sucks the standing water out of the pipe bend from the shower drain hose Then you can hear the nice suction noise in the shower through the drain. Finally I installed the system so that the shower washer no longer has the leaky clamp lid on the standard shower container