So the new pump, filter, ect. is now installed and wanted to fiqure out how long I needed to run. YES, I know there is a topic in pool school that is "figuring out pump run time" but that seemed to be running a big circle to get to the same point as a straight line.
I have the whisperflo wfds-24, running on low my PSI is 0 @ 3in hg
RETURN DYNAMIC would be 2.31x0psi+3psi=3
SUCTION DYNAMIC would be 1.13*3in hg=3.39
So my head on low would be 6.69 or just round to 7, so with my pump curve I would be moving 40GPM or 2400GPH, so I can turn over 22K Gal in 9.2HRS on LOW.
Running on high I'm at 13PSI @ 7in hg
RETURN DYNAMIC would be 2.31*13PSI+3PSI=33.03
SUCTION DYNAMIC would be 1.13*7in hg=7.91
So my head on high would be 40.94 or 41, with my pump curve for high I would be moving 80GPM or 4800GPH, so I can turn over 22K Gal in 4.6hrs.
The numbers do seem correct to me, they are directly proportional to ea other. The flow is what doesn't seem correct, when I look at the fountain or feel the returns on low, it just doesn't seem like that is moving 40GPM.
I do alot of automotive work, so I already had a vacuum gage, but for those who don't and want to do this go to harborfreight or www.harborfreight.com. I think the gage was aroun $15 and actually had the NPT adapters to fit my pump basket drain
Please shot me your inputs