I bought it to replace a lift pump which Totaline Mini Aqua running on empty after years without maintenance. I'm very happy, it is better contrived than its predecessor: Electric arrivals are in the right direction, the connections are "plug and play" can not go wrong with the installation. I did not use the safety controls (the 2 black son). The icing on the cake: It is very very quiet! Very happy for the moment, although it has not yet hot enough to properly test, I emptied 1,5l of water in the drain pan and I enjoyed the silence!