We are currently using a couple of these models in our shop However There is one flaw in this design i would like to point out and we have spoken with Pacific Coast (PCI) about it so it might be changed in future designs. The air inlet for the NW pump is mostly blocked, not allowing the air intake to be completely utilized. The air hole is drilled through the union fitting before the intake of the NW pump. Instead of drilling the hole for the air intake all the way thru the union fitting in a straight line, it is drilled halfway through then takes a 90 degree turn and proceeds to the end of the union fitting (where the two pieces of the union fit together and the gasket goes) so the air is injected into the intake of the pump, right where the two unions join, the o-ring partially covers this hole and in order for us to get the model we use in the shop to work. we have to blow into the air intake in order to jump start the pump. It would circulate water fine but not pull any air into it unless we first blew into the intake in order to jump start it. Every unit we have received has had the same design and when putting it together (they dont come setup with all the gaskets and pump in place) we have seen the same thing on all of them, the air intake hole is placed in the same place and the gasket for the union covers it up about 80%, however still given that we are still happy with the performance of the skimmer so far. It seems to form some very nice dense bubble mixture in the reaction chamber and produces a thick smelly very dark skimmate, the unioned collection cup makes it easy to remove and clean. Anyone else using these skimmer please share your experiences with it.
