Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: Problems with Chlorine and Filter

  1. Back To Top    #1

    Join Date
    May 2015
    Location
    Chardon, ohio
    Posts
    22

    Problems with Chlorine and Filter

    Hi Everyone,

    New to this so here goes.

    Have a slight algea problem upon startup. The pool was clear until I cleaned the bottom and blushed now it's murky bluish white. My pool is in ground 18 x 36. 22000 gals, vinyl liner. I live in the country and a lot of green around the pool. I have a hayward c900 filter which I'm thinking is way too small for my pool. Put filters in and they last an hour until they need to be cleaned. Clean with TSP or cascade and soak overnight and spend a lot of time cleaning and rinsing. This is driving me nuts. Try to use liquid shock as much as possible but for initial shocking this year I use bagged shock from leslies. I've put six bags in and my chlorine level is 0. Stabilizer is less than 5 since opening the pool yesterday. Alkalinity is 80 and ph is 7.2. Can anyone out there give me some advise on dealing with this continual horror of constant issues with clogging filters and getting balance correct to stop the algae issues. Where should I keep my chlorine level during the season? Filters are almost new.

    Thanks

  2. Back To Top    #2
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: Problems with Chlorine and Filter

    Welcome to TFP!

    I would first suggest Pool School, and begin with the ABC's. Do you have a proper test kit? We need some better numbers as well. How do you get less than 5 on Cya (stabilizer) ?

    The Algae can easily be stopped, first with a SLAM, then proper maintenance of the Free Chlorine. Very simple.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  3. Back To Top    #3
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,494

    Re: Problems with Chlorine and Filter

    First, you don't have a problem with your filter - it's doing exactly what it was designed to do - filter junk out of the water. Now, it may be undersized - that's a different issue.

    You have already identified your problem. You have algae in the water. Go to the pool store and they are going to sell you lots of bags of shock and tell you to keep throwing it in. We do things differently around here. We believe in accurate testing and only adding what is necessary to fix the problem.

    To follow the pool care methods taught here you need to arm yourself with the knowledge and tools necessary to care for your pool.

    The knowledge is condensed in the Pool School link at the top of every page. It is a great community here, but we do ask that you read and try to understand the information being taught. Questions are always welcome and folks will try to direct you and teach you the methods.

    The tools are not limited to the brushes, vacuum hoses and other stuff you use around the pool, but include the most important item - one of the recommended test kits. You can buy a kit at a pool store, but again the pool store kits generally won't cut it. To effectively practice the TFPC methods, the FAS/DPD chlorine test is essential. All these kits contain that test while very few other kits do. Think of it this way, do you see a doctor blindly prescribing drugs without seeing the patient or having tests run?
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  4. Back To Top    #4
    Defgufman's Avatar
    Join Date
    Mar 2015
    Location
    Savannah GA
    Posts
    577

    Re: Problems with Chlorine and Filter

    Welcome to TFP
    I ECHO the above. Get the Taylor kit and post your numbers. In a few months, you'll wonder how you ever got suckered into the pool store madness to begin with.
    Inground 13,200 gal Vinyl, Pentair 3/4 hp pump, Pentair Sand Dollar filter, Polaris 280

    Pool School, Pool Math, CYA to FC ratio chart, Testing Kits

  5. Back To Top    #5
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: Problems with Chlorine and Filter

    Welcome to TFP!

    I will repeat it. The reason your FC is 0 is because you have algae in the pool consuming it. You need to SLAM your pool. There is no way your CYA level is 5 after adding all that shock. Need to start using bleach to chlorinate your pool so you stop adding CYA. Find out what the CYA level is and SLAM it.

    Here's how to SLAM Your Pool
    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

  6. Back To Top    #6
    ivyleager's Avatar
    Join Date
    Sep 2007
    Location
    Raleigh-Durham,NC
    Posts
    489

    Re: Problems with Chlorine and Filter

    Hi McKinley!

    pooldv: The CYA can be that low if calcium hypochlorite shock bags are used. Both pool stores near me had bags of shock out and I noticed they were all cal-hypo. If its a vinyl pool and calcium is low, that's fine to use. I use that to add a little calcium if needed.

    My pool size is pretty much the same as yours McKinley. And my initial CYA was zero also, but I didn't know this until my day 4 of SLAM - see my start-up thread here: http://www.troublefreepool.com/threa...ous-in-8-days! . I used 2 gal liquid shock/day for 4 days, CL always measuring zero before days end.

    Sounds like you're going to have to clean those filters OFTEN! But necessary. Make sure to run the filter 24/7 or as much as possible. Brush to get any clinging algae off the vinyl and into circulation.

    Don't worry about the stains yet, rid them after you've cleared the algae. I have to do this every year after opening, metals in water from rusted ladder. Ugh.

    Good luck!
    CaryB
    36 x 18 IG vinyl, 25K, 1 HP pump, sand filter
    1 skimmer, 2 returns, no main drain
    Old school: PoolSolutions test kit

  7. Back To Top    #7
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: Problems with Chlorine and Filter

    Quote Originally Posted by ivyleager View Post
    pooldv: The CYA can be that low if calcium hypochlorite shock bags are used. Both pool stores near me had bags of shock out and I noticed they were all cal-hypo. If its a vinyl pool and calcium is low, that's fine to use. I use that to add a little calcium if needed.
    Right, you are! Thanks for the help!
    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

  8. Back To Top    #8

    Join Date
    May 2015
    Location
    Chardon, ohio
    Posts
    22

    Re: Problems with Chlorine and Filter

    I have posted my particulars for my pool in my profile. I have also just purchased the Taylor K2006. Will post

  9. Back To Top    #9

    Join Date
    May 2015
    Location
    Chardon, ohio
    Posts
    22

    Re: Problems with Chlorine and Filter

    Here are my numbers

    FAC 3
    TAC 3
    CH 190
    CYA 0
    TA 100
    PH 7.0

  10. Back To Top    #10
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,494

    Re: Problems with Chlorine and Filter

    I believe that 7.0 is the lowest pH reading on the K-2006 scale, so you may be well below that Get the pH up to 7.2 using Borax, which is available as 20 Mule TeamŽ Borax Natural Laundry Booster. It is sold in the laundry detergent section of most larger grocery stores and some big box stores. Borax is best added by pre-dissolving it in a bucket of water and then pouring that slowly in front of a return.

    At the same time you ae working on the pH, you need to get CYA up to about 30

    Then it is time to read the directions on SLAMing your pool in the How To section of Pool School and follow that procedure completely to the end.

    * CC is 0.5 or lower;
    * You pass an OCLT (ie overnight FC loss test shows a loss of 1.0 ppm or less);
    * The water is clear.

    When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

Posting Permissions

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