Quote Originally Posted by Akpsdvan View Post
Thought that we where talking about Peak flow, not constant flow... if I was doing 12 gpm flow 24/7 then it would be either a 2 cubic foot or 2.5 cubic foot and a 1.5 inch valve... and I most likely would dump the turbo because of a max flow of 17gpm. But the sizing of the unit would also have to work with the flow out put of the well pump....... only a fool puts a unit needing 12gpm backwash on a 7gpm well pump.
I said peak demand and constant SFR. The constant SFR is controlled by the volume of resin, nothing more. The 1.5 cuft of resin has a 12 gpm SFR, exceed the 12 gpm and the resin can't remove all the hardness.

The pump chart I posted shows a 12 hp 10 gpm pump delivering 11 up to 16 gpm depending on the 'head' of the system, yet you disagree. What do you base the disagreement on other than the gpm rating of the pump, because that is shown to not be true?