I had an almost identical construction HWW of Einhell, which has held for 15 years (without pre-filter). That speaks for the product. Some things have improved (switch on the device itself, everything was a bit more compact). The power is impressive! I think that you can buy in this price range is nothing better. I've run gleichzietig up to 6 sprinklers that supply the property with a very good performance with water. What more do you want ...