Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Pump Head Pressure - Someone said it was too low

  1. Back To Top    #1

    Join Date
    May 2013
    Dallas area

    Pump Head Pressure - Someone said it was too low

    Hello - I have a Pentair VS+SVRS pump and a Pentair cartridge clear and clean plus 520 and when running the pump on low speed (1100 rpm), I am getting near zero head pressure. The person with the builder that helped startup the pool said he always likes to see at least 10 psiand suggested running it faster. I am running the pump on high for 2 hours per day which gives me almost 1 turn on the water and then 1100 rpm for 8 hours to keep the swg working. Why would I ever want more pressure? There is still water coming out of all the jets and it will even make the waterfalls trickle if I wanted. Running the pump on low if about 140 watts, running on high is about 2400 watts (17 times increase) with an estimated increase in water flow of 6-7 times. I estimated these flow rates based on others post in the forum.

    Dallas area, free form, quartz finish, flagstone, pentair cartridge, vs pump, swg

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Pump Head Pressure - Someone said it was too low

    While 10 psi would be good for a single speed pump, but the whole purpose of a variable speed pump is so that you can reduce the amount of power used and that means lower flow and therefore lower dynamic head press. Run it as low as you want to and don't worry about the head pressure.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts