Ang ämnet Bubble Master Detta svar skrev Oliver Pritzel ang. varför de har bytt från Eheim till de nya pumparna i zeovit.com "Hallo, The reasons why we changed the pump were different. First, we find out that not all Eheim Rotors (magnets) were well balanced (before we start to modify the Rotor) and because of this some Pumps were silent and some pumps were not so silent. This was unacceptable for us (we have hundreds of not well balanced Rotors in our Stock) and not the best solution for our customers. Another point is the geometrie of the Eheim Pump. This Pump is a good Pump to move Water. And this is exactly what the pump was made for. But to have a good Skimerpump, we have to modify this Pump (prechamber, wateroutlet etc). The new pumps have a pefect geometrie (large prechamber etc.) and we do not have to modify the pump. Perhaps this is the reason, why Tunze will use this Pump(but with needle wheels), too. The most interesting point with this new pumps is the fact, that it is possible to use this pump without ceramicshaft. The complete Rotor has no contact to the pump or case (only the waterfilm) and because of this the pump is absolutely wear resistant and very silent. I think, this is the first Skimmerpump that can work in this way. Anyway, we have tested this pump 6 Month now and we are very happy with the results. Silent, less or no wear, low Energie consumption and a high performance. Thanks, Oliver" Mvh Jocke