Addendum 05.04.2014: Unfortunately I have to correct to 3 years using the rating down.
Reason: The connection piece for the pressure switch "rotted away" .Läßt Although resolve with little effort, is likely during this period but not passieren.Ansonsten works the pump continues to be impeccable.
Supplement Summer 2014: The damage to the pressure switch was not without consequences for a short time after the repair of the noise of the pump rose to about 4 weeks after the pump firmly went.
Actually 0 BUT: See Comment: Without prompt the customer service (a few) emails reported to me and after a few with description of the new state of play there was a gesture of goodwill, a new pump!
I quote: "Our biggest focus is on the satisfaction of our customers"
So why only 4 stars? In the quality control Einhell must still set because the new pump was first also leaking.
Conclusion: Customer service top pump good quality control at Einhell Well