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Thread: Help FC loss

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    Help FC loss

    Hey.

    due to chlorine consumption I assumed I had algae (hard to tell as I have a black-bottomed spa).

    it's an 1100 gallon spa with vanishing edge and overflow basin (300 gallon).

    current measurements are

    CYA 40
    shock FC 16
    Combined 1.0
    All other levels are balanced
    I'm losing 9 FC overnight even though the water is sparkling clear. I've been slamming since last sunday (5 days) Any thoughts on what's going on?

    thanks

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    Mod Squad JVTrain's Avatar
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    Re: Help FC loss

    What's the temp on the spa?

    9 FC is unacceptable loss overnight, even in a very hot spa. You must still have some organics in the spa. When did you refill the spa last? Have you ever performed a spa flush on the entire system with a product such as Ahh-some?
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: Help FC loss

    Quote Originally Posted by JVTrain View Post
    What's the temp on the spa?

    9 FC is unacceptable loss overnight, even in a very hot spa. You must still have some organics in the spa. When did you refill the spa last? Have you ever performed a spa flush on the entire system with a product such as Ahh-some?
    I refilled a month ago.

    I've never used those products, the spa is only a year old.

    Is it okay to use ahhsome or yuk with an inground spa? Also is there one you recommend?

    thanks!

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    Mod Squad pooldv's Avatar
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    Re: Help FC loss

    Ahh-some jetted tub cleaner is the recommended product.

    Is it a gunite spa? Please fill out your signature so that we can better help you. More here on what to put in your signature and how to do it, Pool School - Read This BEFORE You Post
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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: Help FC loss

    Quote Originally Posted by pooldv View Post
    Ahh-some jetted tub cleaner is the recommended product.

    Is it a gunite spa? Please fill out your signature so that we can better help you. More here on what to put in your signature and how to do it, Pool School - Read This BEFORE You Post
    It is gunite, does that make a difference?

    - - - Updated - - -

    added extra info to sig
    1100 gallon gunite IG spa with vanishing edge and 300 gallon overflow basin. Cartridge filter, hayward variable speed pump, finished 11/15/15, Taylor kit,



  6. Back To Top    #6
    Mod Squad pooldv's Avatar
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    Re: Help FC loss

    I don't know if the Ahh-some is designed to go through a pool filter and vice versa. I would be inclined to clean the filter and perform a SLAM
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    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: Help FC loss

    Quote Originally Posted by pooldv View Post
    I don't know if the Ahh-some is designed to go through a pool filter and vice versa. I would be inclined to clean the filter and perform a SLAM
    I'll clean the filter tom. Do I need to soak the cartridges in anything or just wash them out the hose?

    Really appreciate the help!

    D
    1100 gallon gunite IG spa with vanishing edge and 300 gallon overflow basin. Cartridge filter, hayward variable speed pump, finished 11/15/15, Taylor kit,



  8. Back To Top    #8
    Mod Squad pooldv's Avatar
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    Re: Help FC loss

    Probably no need since it is fairly new.

    More here on cleaning
    Pool School - Maintenance and Cleaning of Pool Filters.
    And here,
    Re: How to clean a cartridge filter
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    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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