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Thread: Backwashing and brown water

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    Backwashing and brown water

    Read the pool school article on backwashing. So dense I still have a question. Tried backwashing and brown water (I quess it was sand) blew in from water jet. I do not see a valve to open to make water go to drain pipe. Do I have to attach hose to water jets? HELP. Will try and attach a pic of filter set up. Pic shows pipe on right which goes to ground for draining pool but did not see water come out when backwashing. But only left it on for a few secs since looked like sand into pool.
    iPhone not ketting me add photo. Will add when i get back inside
    IG-vinyl liner, 39,000 gallons, Hayward 1 1/2 hp super pump, Sand filter (not sure on flow)
    Locale - NE Texas

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    Mod Squad Bama Rambler's Avatar
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    Re: Backwashing and brown water

    Do you have a multiport or a slider valve?
    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
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    Re: Backwashing and brown water

    Great question??? Can you tell me from these pics?
    Have also attached pic of plumbing setup.
    Attached Images Attached Images
    IG-vinyl liner, 39,000 gallons, Hayward 1 1/2 hp super pump, Sand filter (not sure on flow)
    Locale - NE Texas

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    Mod Squad Bama Rambler's Avatar
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    Re: Backwashing and brown water

    The position under the handle (opposite of the current setting), should be the backwash setting. That allows water to go through the pipe on the right near the wall. You should see water in the small sight glass on the port leading to that pipe when baskwashing. Once done backwashing you should rinse for about a minute, then put it back on filter (current position). You have a top mounted multiport valve.
    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

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    Re: Backwashing and brown water

    Make sure the pump motor is turned off when changing the lever.
    I didn't know at 1st!
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    Re: Backwashing and brown water

    Will try. Last time I did that I had brown water flowing into pool from water jets.
    IG-vinyl liner, 39,000 gallons, Hayward 1 1/2 hp super pump, Sand filter (not sure on flow)
    Locale - NE Texas

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    Re: Backwashing and brown water

    Have you backwashed w/no problems before? I don't know your plumbing or valve setup, but wondering if you're plumbing is set up incorrectly?
    Indiana, ABG 24'x52" Galveston by Blue Cascade (Craigslist buy w/part of deck included), 13,500 gallons, Intex SWG, solar panels mix 2, TF-100 test kit.

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    Mod Squad Bama Rambler's Avatar
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    Re: Backwashing and brown water

    If you have a spider gasket problem it could bypass dirty water back to the pool in backwash. I'd take the top off the multiport and check the gasket. Your local pool store shoud carry a replacement.
    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

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    Re: Backwashing and brown water

    I Did the backwash and it happened again. Did it once again and used the rinse setting in between and now there is Bo brown water. Thanks for all the help. Next battle is algae. Got to go read in the pool school.
    IG-vinyl liner, 39,000 gallons, Hayward 1 1/2 hp super pump, Sand filter (not sure on flow)
    Locale - NE Texas

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    Re: Backwashing and brown water

    Right. You have to 'rinse' after 'backwash' each time.
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