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Thread: Doing first Slam, not sure I should be

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    Doing first Slam, not sure I should be

    Ok so I got a pool last year and researched before so I have been using the TFP method since day 1. Test chlorine and PH every day other things about once a week. Use 8.25% bleach and maybe 5-6 times have had to add Borax. Last night noticed the pool was a little cloudy so added 10 extra ounces even though my test showed 3.0 FC. Today it's super cloudy with a green tint and can't see the bottom. Measurements were 5.0 FC, 0.0 CC, 40 CYA and 7.6 PH. I dumped 226 oz of bleach to get to 16 FC at 2:15 PM. Just tested again at 5:10 PM and the FC is at 17 so no loss. It was partly cloudy during this time but I assumed it was gonna go down some of not a ton. Do I have a different problem. I have never added anything to my filter in the year I've had it nor deep cleaned it. Could this be the problem? Our pool is always in awesome shape and we get so many compliments on the water, which is due to this community. Thank you for that, now I need some advice...
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Pool Tool's Avatar
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    Re: Doing first Slam, not sure I should be

    No, you are on the right path. Even though you have added the chlorine and there's algae in there it sometimes won't drop immediately. Brushing will help open the algae up to the chlorine so do so frequently.

    You don't mention lowering the pH, but I still would use PoolMath and add MA to bring you from 7.6 to 7.2. You can run an OCLT tonight if you still don't see it dropping, but I think with some brushing and time it will happen.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

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    Re: Doing first Slam, not sure I should be

    I have never had to lower PH before, will have to go find some MA hopefully the smaller hardware store by me has some. lowes and HD are 25 mins away...not wanting to make that drive tonight lol
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    Brushed and vacuumed pool and then Put the MA in to aim for 7.2 on the PH scale. Have 7:00 results:
    FC-14 and CC-1 brought back to shock level and then just tested again at 9:00 and FC-15.5 and CC-.5. No change in cloudiness. Pool doesn't have any odor

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    Re: Doing first Slam, not sure I should be

    Sounds good, glad to hear is acting a little more like you'd expect it to. You'll start to see for progress in the next few days I hope.

    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

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    Re: Doing first Slam, not sure I should be

    Checked this morning and the results are the same as last night. No loss of chlorine overnight at all?!?!?

    What else could I be dealing with? Does it have to be filter related then?

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    Re: Doing first Slam, not sure I should be

    Quote Originally Posted by SteveOB View Post
    Checked this morning and the results are the same as last night. No loss of chlorine overnight at all?!?!?

    What else could I be dealing with? Does it have to be filter related then?
    Any ideas? Or just keep the SLAM going even though I am having minor FC loss?
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    Checked at 9:00 and FC-14 and CC-0. Brought FC level back up to shock level of 16. Tested again just now at 10:15 FC-16 and CC-0. I am working at home and am gonna get in and brush soon maybe that will cause the FC to drop? I can slightly see the bottom now but not sure if that's just because it's super sunny right now.
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    I would absolutely add DE to your filter since you can be home to babysit it. https://www.google.com/url?sa=t&rct=...S9vyALsnvEH_AA

    This may help diagnose a filter issue. Though sand filters are the slowest at clearing after a bloom but should still keep it clear under normal circumstances like your's has. Definitely a little strange.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

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    Re: Doing first Slam, not sure I should be

    Thanks a lot for talking to me about this Pool Tool. I will try and put some DE in there, I bought a box of it yesterday but was too scared to pull the trigger. I had called the guy who installed our pool and closed it at the end of the summer. He said he never heard of putting DE in a sand filter. But he also never heard of using regular bleach either so I don't know what to think of him. He can install a pool, as far as maintaining one I am not so sure lol.
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    1:00 PM FC-11 and CC-0.0 added 110 oz to get back to SLAM level (actually 16.5). At this time I got in the pool and scrubbed the sides, bottom, ladders, and everything else.

    2:30 PM FC-15.5 and CC-0.0....so in an hour and half in 100% sun I only lost 1 of FC. I can slightly see the bottom on the sides (which are a little shallower). So improving very slightly.
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    Tested at 7:30 FC down to 10 and CC still at 0. Dumped a gallon of bleach in will test again once it gets dark. Anyone out there other than pool tool lol?
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    Forgot to mention I did put some DE into my filter earlier today.

    Can bird poop make algae come on faster than normal? Our solar cover has had a bunch on it lately and am wondering if some is getting into the pool as well causing this algae bloom.

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    Re: Doing first Slam, not sure I should be

    Can you take your ladder out of the pool? A lot of AG ladders have places where algae can hide. Take it out if you can and scrub it with a bleach solution.

    And don't dis Pool Tool.... Even though he is a Packer fan!

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    Re: Doing first Slam, not sure I should be

    I would try a deep clean of your sand filter during your slam. I have seen several ppl recommend to do this at least once a year and it makes sense to me. I am planning to do mine when I open my pool. Then I would add DE as recommended above

    Sorta on the bird poop. Its an organic so the bleach will act on it and may drop your FC faster than you expect, which would allow algae a chance

    I lay my cover on the lawn and give it a scrub with soapy water and a soft broom when it gets yucky and then rinse with 1 pt bleach & 4pts water and allow to dry before it goes back on the pool
    6000 gal, AG vinyl, Intex ultra frame 16ft, 1200 Gallon Sand Filter, DIY Solar, Clear Choice Labs Testing Kit

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    Re: Doing first Slam, not sure I should be

    I wasn't making fun of Pool Tool at all. I can take the ladders out and scrub them and will do that today. I had no FC loss overnight at all, I am so confused. The pool is a little clearer this morning, but when standing on the side I can only see the bottom about 5 feet into the pool. If FC is not being eaten rapidly or even at all overnight what else could be the problem?
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    Haha, no offense taken Steve. Marian we're always looking for one more fan, though I think the bears could be pretty good too this year.

    Steve do you see a difference in gauge pressure if you switch between filter and recirculate?

    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

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    Re: Doing first Slam, not sure I should be

    The pool has cleared up a little more yesterday and today. We had family over and swam in it most of the day so I only added bleach four times yesterday. It was very hot and sunny and lots of sunscreen was in the pool. These were the measurements: (I measured CC and it was always zero)

    7:00- FC:15.0
    1:15- FC: 10.0
    5:00- FC: 11.0
    10:00 FC: 13.0

    And then this morning it was still 16 (slam level) with the overnight FC loss. But still as cloudy as yesterday. I am gonna put our vacuum in now. I am not having a ton of FC loss and have no CC is all of a sudden the pool gonna be clear?

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    Re: Doing first Slam, not sure I should be

    Tested again just now (2:30) more than 5 hours later and only down to 15. So since I brought the pool back to SLAM level at 10:00 last night I have only lost 1 FC in 16.5 hours. It's been overcast all day and raining a little so I didn't expect much burn off from the sun. But 1 in that man hours when the pool is obviously not right has me confused.

    Anyone with any advice?
    24' AG vinyl 13,900 gallon, 1.5 HP pent air 2 speed pump, pent air sand dollar filter (SD-40). Installed July 31, 2015. 1st time pool owner btw, with a 4 and 2 year old, pray for us lol. Have the TF-100 test kit w/speed stirrer. Use 8.25% bleach

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    Re: Doing first Slam, not sure I should be

    Steve - any improvement yet? Any luck with the DE addition? I apologize you haven't had more comments but it seems ideas are scarce.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

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