Via are know to vibrate a lot and be noisy. Also, alot of people had there via's die on their hand after less than 2-3 months of use, when others have been running there own for years without flaw. But that's what you should expect of low hand product, as someone else once said: when you buy low quality pump, it may work well.
740gph means 740 gallons per hour, that's the maximum flow (unrestricted inlet/outlet) that the pump can give you, you will never achieve even half such a flow, especially only 6.5feet of head. Your pump is high flow, low head pump, exactly the opposite of you should be looking for (low flow, high head).
|