Hello. New member here, been reading for a week or so. Glad to hear any advice.
We just had a 10k gal fiberglass installed (pouring concrete monday) and now that I have the pump and filter up and going, Im afraid my pump may be too much. I am loving how quiet the pump is but getting a lot of noise from turbulence in the return right as it exits the 6-way of the filter. I have a decent understanding of hydraulics as I work in operations in an oil refinery but I am not an engineer. I can pinch my return valves back and increase the back pressure and the noise goes away and it is not there when I switch the filter to recirc. Here is what I have and what my thinking is:
(2) 2" main drain suctions tied together under ground
(1) 2" skimmer
(3) 2" returns (not sure of eyeball size but Im assuming 3/4")
Sand dollar SD80 (which I believe has a 1.5" 6-way valve which I suspect is causing my problem with turbulence noise due to too big of a pressure drop)
I will try to attach a picture if it will help.
Thank anyone who can give me any helpful advice. Should I go with a smaller pump? Change my impeller/diffuser? Change eyeball size? (though I worry about this effecting longevity of the pump).