Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: Extended Backwash OK?

  1. Back To Top    #1

    Join Date
    Jul 2011
    Location
    Broken Arrow, OK (Tulsa)
    Posts
    276

    Extended Backwash OK?

    I need to replace a sizeable portion of the water in our pool because of a high CH level (between 400 to 600, depending on whether I believe the pool store's reading or my own), and am wondering if setting the valve to backwash for an extended period of time (say 20 minutes or so?) is OK for our sand filter, or if I should just backwash it to waste? I'm thinking a long backwash might be good for the sand, but thought I'd best check here first.
    16 x 31, Approx. 12,000 Gal Freeform IG pool; Flagstone coping; Quartzscapes Super Blue plaster finish; Tanning ledge w/2 bubblers; 1 HP Pentair Whisperflo pump, Pentair sand filter; (2) Pentair Intellibrite LEDs w/controller; Easytouch8 w/IC-40 SWG; Salt finish concrete decking.

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,342

    Re: Extended Backwash OK?

    A long backwash won't hurt anything. And it may actually help the sand bed some.
    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

  3. Back To Top    #3

    Join Date
    Jul 2011
    Location
    Broken Arrow, OK (Tulsa)
    Posts
    276

    Re: Extended Backwash OK?

    I appreciate the speedy response, Rambler! Thanks!
    16 x 31, Approx. 12,000 Gal Freeform IG pool; Flagstone coping; Quartzscapes Super Blue plaster finish; Tanning ledge w/2 bubblers; 1 HP Pentair Whisperflo pump, Pentair sand filter; (2) Pentair Intellibrite LEDs w/controller; Easytouch8 w/IC-40 SWG; Salt finish concrete decking.

Posting Permissions

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