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Thread: Water is very green - Leslie's says "we don't have a clue"

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    Water is very green - Leslie's says "we don't have a clue"

    Problem: VERY GREEN WATER, 2wks plus

    FC: .5
    TC: 1
    pH: 7.8
    TA: 210
    CH: 370
    CYA: 115

    My pool: 12,000 gallons
    Pool chemicals: started with 3 bags of super shock/ then tried soda ash to bring ph up above 8 (per leslies') & green to clean then added 5 more bags of super shock
    My pump & filter: sand filter
    Other info: we have done a partial water change for the past 7 days everyday (1 foot a day to waste and refill). Have vacummed several times and backwashed 3 times.

    We are new pool owners , pool is 18yrs old, has been maintained effeciently in the past by professional pool company. We took over the maintainence 6 wks ago, about 2 wks ago, the automatic chlorinator ran out of tablets for about 2 days, at the same time we had a thunderstorm that blew in a lot of pollen and the tree in our neighbors yard started blooming and dropping pollen in the pool. Since then the water has been a lovely shade of green, going from a light shade (margarita green) to now a very dark (kelly green) shade . We started with leslie's recommendation of partial water change - 1 ft drain to waste/refill (did this 4 times) . We have also daily been diligent in removing all debris, etc. and cleaning out the skimmer. Still green, leslie's recommended that we use soda ash to bring ph above 8, super shock, add "green to clean", shock again and then vacume. Still green, and now seems to be a darker green (kelly green). Leslie's now says to dump to waste at least 4 ft of water to bring down the CYA, and told us that "she didn't have a clue what else to do" which is very scary to a new pool owner (what the h*** do you do when the pool store doesn't know what to do?!?!? )! Hoping you guys can help us out! Hubby is about ready to fill it in with dirt or make a skate park outta the pool for our son!
    Pool is in ground 12K gallon
    Hayward sand filter with an automatic chlorinator

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    Re: Water is very green - Leslie's says "we don't have a clue"

    Welcome to TFP!!

    My first suggestion, before all the moderators and experienced BBB method users come on with their wonderful advice, is to begin reading Pool School (top right hand corner).

    There is hope for your pool... don't despair.

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    Join Date
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    Re: Water is very green - Leslie's says "we don't have a clue"

    Yes, I second that advise. And, during the pool school, order a test kit if you do not have one. TF 100 or a Taylor K 2006 kit. Can not do without it. Also, need about 2-3 weeks time and about $ 150 worth of chemicals, you should be on your way to TFP.
    Above Ground 14.2 K Gallon, vinyl, Baquapure sand filter, 2.5 HP pump, K-2006 test kit

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    Casey's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    Hi and Welcome.

    Kinda scary when the PS says: I dunno.

    J/K.

    If your numbers are right, you still need to do the drain refill dance. You want your CYA to be about 30-50 no more no less. Anywhere between there will work.

    Your pH is high. You should go get your self some Muriatic Acid and get that down right away. Not only is your pH high but the TA is high and is most definately the main reason why the pH is high and rising. You will learn in Pool School how to bring it down by adding Muriatic Acid and aerating the pool.

    The reason why your pool is so green is because you have virtually no chlorine in the pool, besides the toooo high CYA. I'm not blaming you but the over use of pool shock and pucks got you to where you are but now that you're here, you can learn from your mistakes and take better care of your pool.

    Order a good test kit. You can find the link in my siggy for the one and only TF-100. There is really no sense in having a pool if you don't have a good test kit!
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Re: Water is very green - Leslie's says "we don't have a clue"

    Thank you all for your replies!! Ok, from what I understand, I need to get the CYA down first, to a level of 30-50, then shock, correct? And the only way to do this is to drain water, correct? By calculating the CYA on the pool calculator, it says I need to drain 57% to get the CYA to a 30-50. Do you have any advise on how to do this (sorry we are terribly new and novice at this). I can only drain 8" from the skimmer area, is there a way to drain from the drain at the bottom of the pool?
    Pool is in ground 12K gallon
    Hayward sand filter with an automatic chlorinator

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    spishex's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    You're on the right track with the drain/refilling. At that CYA level you'll need a FC level of over 40 ppm to get rid of your algae problem effectively.

    Is your pool raised or at a high point in your yard? Siphoning with your vacuum hose is a fast easy way height differential to make it happen.

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    Re: Water is very green - Leslie's says "we don't have a clue"

    The pool is not at a high point, so siphoning will prove to be a challenge.
    Pool is in ground 12K gallon
    Hayward sand filter with an automatic chlorinator

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    spishex's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    Yeah, you'd just have to sit there and drink it all to keep it going.

    Looks like you'll need a submersible pump, or a well-synchronized 50-person cannonball.

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    Re: Water is very green - Leslie's says "we don't have a clue"

    How about vacuum and use "bypass to waste" setting on your filter? Do you have such a setting?

    RV
    Above Ground 14.2 K Gallon, vinyl, Baquapure sand filter, 2.5 HP pump, K-2006 test kit

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    JasonLion's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    The simplest thing might be to keep doing 8" at a time. If you want to do more at a time, you need to leave at least one foot of water in the shallow end to keep the liner from shifting.

    You absolutely need to get CYA down to 80, and 50 is much better.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Water is very green - Leslie's says "we don't have a clue"

    We've tried vacuming to waste as well, but that will only drain to the skimmer level as well, which we thought was a little strange?! None the less, I think we are going to try the submersible pump and try to remove that way, or try the 50 person cannonball.... . Any thoughts on how much we should remove? Pool calculator says 57%, what do you all think?
    Pool is in ground 12K gallon
    Hayward sand filter with an automatic chlorinator

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    Casey's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    Can you put your pool specs in your signature so we know what kind of pool you have, your equipment ext... You can use the User Control Panel at the top left to do so.

    You don't want to go down to far past your skimmers so you don't pop the pool out of the ground if it's a concrete/fiberglass pool due to a possible high water table. If it's liner, if you take too much out, it could unseat it and ruin the perfect fit so to say.

    It's a process and takes time.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Re: Water is very green - Leslie's says "we don't have a clue"

    trouble with algae is it takes time to clear and when most people don't see overnight results they get discouraged and either give up or dump more money in useless chemicals.

    Research this and you'll be your new best friend once you know how to solve it. Great advice so far.
    15,500 gal, inground gunite pool with 7 ft spa, 2 speed pump 2hp/.33hp, 3/4 hp booster pump, Intermatic P1353 timer, AutoPilot SC-48, Sand filter with ZeoBest, Heater, that I never use . . .

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    Re: Water is very green - Leslie's says "we don't have a clue"

    We are in drought stages so popping the pool seems unlikely (although I don't know this for sure) if I'm not removing much past the skimmer, how do I accomplish lowering the CYA? I've added some info to my sig, hope that helps! Thank you all for your help and suggestions!
    Pool is in ground 12K gallon
    Hayward sand filter with an automatic chlorinator

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    frustratedpoolmom's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    Partial drain, refill, recirculate, retest, repeat....until it's in range.

    I don't think it will take $150 in chems - your pool is only 12,000 gal.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: Water is very green - Leslie's says "we don't have a clue"

    With each draining, you are lowering the CYA somewhat. CYA is not found normally in water, so when you refill, you lower the levels.
    This will take longer (and ultimately more water) than if you could safely drain, say, half of your pool at once, but it will eventually get it within reason.

    I am not sure if anyone has said it, but STOP with the tabs and powders!!! They are contributing to your VERY high CYA.

    Question to smarter people than me:
    I am SO not an inground pool person... is it possible to backwash from the main drain?

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

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    Re: Water is very green - Leslie's says "we don't have a clue"

    Can you say how many gallons you replace each time? If you're replacing say 10% of the water each time, then it will take 5 rounds to replace 40% of the original water, which would put your CYA at 115x.6=70. (Just trying to ballpark how much of this drain/refill you have to go through, since you can do only a small amount at a time.)
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    JasonLion's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    Quote Originally Posted by The Mermaid Queen
    I am SO not an inground pool person... is it possible to backwash from the main drain?
    It depends on the way the plumbing is hooked up. If there are separate lines back to the equipment pad, with valves, then yes.

    The other way to drain below the skimmer, with only a skimmer, is to use a vacuum hose, and also be constantly running water into the skimmer from the pool with a small pump, perhaps a cover pump. The extra water in the skimmer should prevent any air from getting into the vacuum hose and causing you to lose prime.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Ohm_Boy's Avatar
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    Re: Water is very green - Leslie's says "we don't have a clue"

    As for how much to drain/replace, we are all assuming that the 115 CYA reading is correct. If it is the maximum reading of a test set, then it could well be higher.
    [center:1kpalu48]Helpful Links: Pool School | CYA/Chlorine Chart | Pool Calculator[/center:1kpalu48]

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    Re: Water is very green - Leslie's says "we don't have a clue"

    We started the submersible last night, and we have removed 2 & 3/4 ft of water. How do I determine how many gallons that is? Is there a standard equation for it? Also, when "jasonlion" mentioned draining with the skimmer & vacume, you mentioned "prime", I'm not sure what this is?
    Pool is in ground 12K gallon
    Hayward sand filter with an automatic chlorinator

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