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Thread: Pool water discharge weak

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    Pool water discharge weak

    Good day, i recently acquired an home that has an old pool with new vinyl liner installed, im new so please play nice...haha, the predicament im in evolves weak discharge on the jets, but as soon as i clean the d.e filter it will be nice and strong stream coming out but after a day or two it becomes weak again, this happens only at filter mode, but when i switch it to recirc it stays steady strong even after the filter mode ejects weak pressure to the jets, i have a new 3/4 hp jandy pool pump, inground pool 20x40, hayward filter that seems old as well, thank you in advance!


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    Mod Squad pooldv's Avatar
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    Re: Pool water discharge weak

    Welcome to TFP!

    Sounds like you have some debris in the pool clogging up the filter. If you can't see it then it is probably the early stage of an algae bloom. Algae is caused by low chlorine level relative to the CYA level. Chlorine level is set based on CYA and the Chlorine CYA Chart. Chlorine should always be at target and never below minimum for your CYA.

    You can raise FC up to 10ish and Perform the Overnight FC Loss Test (OCLT) to see if there is organic matter in the pool consuming your chlorine. If it doesn't pass then SLAM - Shock Level And Maintain to get rid of it.

    You will need a good test kit if you don't have one from the Test Kits Compared. I use the TF100 from TFTestkits.net.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Pool water discharge weak

    Do you know the model# of the filter?
    Is the pool water clear or cloudy?
    Where are you getting your DE from?
    16' x 34' vinyl in ground - 16,500 gal.
    Hayward EC-75 DE filter with Hayward 1hp Super Pump
    TF-100XL Test Kit with SpeedStir

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    Richard320's Avatar
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    Re: Pool water discharge weak

    Welcome!

    You have a dirty filter. And it got that way because you have a dirty pool. It's working the way it's designed: strain out debris in the water and trap it and return clean water to the pool. When it clogs up, you backwash and get rid of the junk.

    How does the water look? When a filter clogs that quickly, something is wrong. If it's green and murky, you know what it is. But it could be an algae bloom gathering strength, and you're just holding it off. If you don't eradicate the cloudiness by killing the algae, you'll never get ahead of it to where your filter lasts weeks or months between backwashes. It will keep growing as fast as you can kill and filter it.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Divin Dave's Avatar
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    Re: Pool water discharge weak

    I agree with Richard.
    Something is in the water which is clogging the filter, in that you may have algae which is not visible yet, and thats what is clogging up the filter.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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    Re: Pool water discharge weak

    Right now its dark green , i kinda got tired and seek for help here first before i go at it again, i was thingking that it might have like a cracked underground pvc or something, thank you every one and tomorrow i will shock the **** out of the pool with algaecide or something and post results


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    Richard320's Avatar
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    Re: Pool water discharge weak

    Quote Originally Posted by Bud View Post
    Right now its dark green , i kinda got tired and seek for help here first before i go at it again, i was thingking that it might have like a cracked underground pvc or something, thank you every one and tomorrow i will shock the **** out of the pool with algaecide or something and post results

    Sent from my SM-N910T using Tapatalk
    Algaecide or something else should be bleach, and the &6#5 level depends on the CYA level. Rather than bore you with pool school links, check out some of these before and after stories. Recovering my old inspirational links Most recent are the last ones. Just do what they did.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Pool water discharge weak

    I believe it is time to take the filter completely apart and clean. Make sure you add the appropriate amount of DE. For the manual you can go to Welcome to Hayward Residential and Commercial Pool Products Go to support and manuals. Most manuals are listed.
    Hayward Pool Tech
    80+ Years of Technologically Advanced Pool Product Manufacturing
    poolside@haywardnet.com

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    Mod Squad pooldv's Avatar
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    Re: Pool water discharge weak

    With a green pool you need to SLAM - Shock Level And Maintain your pool. Follow the directions closely and it will clear up your pool.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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