I have just switched from a single speed Hayward 1 HP Super Pump to a new Hayward SP2600VS (verable speed) which is a 1 1/2 HP true rated pump.
It comes set with a default configuration of 3000 RPM V3 mode to prime for 3 minutes then 3,000 RPM (still V3) for the remainder of 12 hours. It defaults then to 1500 RPM (V1 mode) for 12 hours.
My pool is 18 x 36 in-ground with inverted corners (Grecian style). It is 3 feet deep for approx. 8 feet then slopes downward gradually and the deep end portion is 9 1/2 feet. I figured that this would be a total of 21,870 approx. gallons of water.
I installed a flow meter (Blue & White) and while the pump is running at 3,000 rpm the flow meter reads 37 gpm which would relate to 2,220 gph and a total turnover in 12 hours of 26,640. The filter pressure at this speed is 15 psi which is what it was with my old single speed pump running at
3500 rpm. The power being used at the 3,000 speed for the VS pump is 1,160 watts.
The pump ran fine all night and at approx. 6 AM (which is when the 12 hrs was up) it switched to speed 1500 rpm (mode V1) which is V1 default speed. The stats at the 1500 rpm speed is: Flow meter - 15 GPM which relates to 900 gph or 10,800 gallon turn over rate in 12 hours.
The thing that bothers me is the PSI reading of my filter at 1500 rpm is only 4 psi. The water is circulating in my pool but of course no where near the force since it is running slower speed. The water is perfectly clear. This psi is with my freshly backwashed sand filter.
At these default settings, I will be turning over approx. 37,440 gallons of pool water which is almost twice what I think a near perfect turn-over should be (21,870 gallons in 12 hours).
Would someone please look at my post and give me some pointers and directions.
You can google and pull up the manual for this pump Hayward sp2600vs. if you need to.
I have had my pool for approx. 40 years and always operated with a single speed Hayward Super Pump so this variable speed one leaves me with a few questions.