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Thread: Brown Water Backwash, NOT Rinse, Nor Return Jets

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    Brown Water Backwash, NOT Rinse, Nor Return Jets

    Hello everyone!
    I'm having quite the puzzler, and Google searches aren't helping.
    After rainfalls add inches to my pool water, I backwash for a minute, then rinse for a minute, then return to filter. When I turn on the backwash, brown water...pretty much muddy water, shoots out. The water clears up when I switch to rinse, and no muddy water goes to returns when I flip to filter.
    I can't figure out where the muddy water is coming from, but seems obvious there is a leak somewhere. But, I'm puzzled how it clears when I go to rinse, and is gone when set to filter.
    Thank you for any ideas/suggestions!

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    Mod Squad mknauss's Avatar
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    Re: Brown Water Backwash, NOT Rinse, Nor Return Jets

    Welcome to the forum!

    Since you are backwashing you have either a DE or sand filter, right? A signature detailing your equipment really helps there. See Pool School - Getting Started

    So, if your filter is working correctly, it should be backwashing out any dirt collected by your filter. If it is DE, it is sending out the DE too that has to be recharged. If sand, it clears up once the dirt in the filter is gone.

    Why would you say you have a leak then?

    Take care.
    6000 Gallon IG Fiberglass with integrated Spa;Pentair CCP240 Cartridge Filter with Pentair Intelliflo VS Pump and HTR250 heater. IC40 SWG. EasyTouch 4. Dolphin Active20 Robot "Roadrunner", TF 100 Test Kit w/SpeedStir!
    CLICK HERE to Become a TroubleFreePool.com Supporter!! Pool Math App
    Marty

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    Mod Squad Jimrahbe's Avatar
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    Re: Brown Water Backwash, NOT Rinse, Nor Return Jets

    SB,

    Welcome to TFP... A great place to find the answers to all your backwash questions...

    Sounds pretty normal to me also???

    Keep in mind when you backwash, you are sending water through your filter backward... which of course washes all the 'stuff' the filter has collected out the backwash pipe... Rinse and filter modes push water through your filter by the normal path and clean the water before it comes out.

    Maybe we just don't understand the issue... Tell us more details..

    Thanks for posting,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    jeffchap's Avatar
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    Re: Brown Water Backwash, NOT Rinse, Nor Return Jets

    That sounds normal. The "muddy" water is just all the gunk that your filter has removed from your water, ie. dirt and dust that have blown into the pool, sunscreen, bugs, grass, bird droppings, etc.

    Backwashing gets that all out of your filter so that there's room for more. After the backwash, the Rinse cycle clears any dirty water still inside the filter out so that it doesn't get shot back into your pool when you switch it back to Filter mode.
    25000 gallon free-form gunite
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