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Thread: Need to vent...

  1. Back To Top    #1

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    Need to vent...

    It's been awhile since I checked in 8 years lol! Been trouble free . I am having a problem passing oclt test. Let me start at the beginning. Last week I noticed I was having a hard time maintains my cl levels. My swg was running at 100% for 10 hours and I had never had to do this before. So I broke down the aquapure and got the minuscule amount of scale off of it ( no error codes). Cleaned the filters (that were not that dirty). Checked my cya and saw that it was at 90, a bit high. Checked my salt and saw it was at 3200.

    So This Monday came around and I decided it was time to slam the pool for the first time e v e r because obviously something was trying to take hold in the pool and this must be the reason the swg couldn't keep up. Picked up 12 128oz bottles of bleach. The girl at the check out was like whoa! I told her i had to get rid of the blood stains Bwhahahhhahhaaaaa and then she was really freaked out lol. I dumped a bit of my water to get the cya down to 70 and put in 6 bottles but that was too many because I had the wrong size pool in the calculator. Whoops.

    I had been getting by with the oto test kit for the past 7 years. And my pool has been perfect. You could see a pin at the bottom of it...and here is the part that kills me....STILL can. But I knew to do the test right I had to get the tf100. Ordered it, and it will be here today. In the mean time I am borrowing a friends who I turned on to tfp when he moved and got a pool. He is a tfp believer .

    Here are my Sunday pre slam numbers

    Fc 2
    Cc 0
    Salt 3200
    Ch 250
    Cya 90
    Ta 70
    Ph 7.8
    Temp 90

    Here is my log starting this Monday with slam and notes


    Xxxxxxxzxxxxxxxxxxxxxxxxxxxx Monday

    Stay at 28! Number of drops x.5. Start with 6 bottles of bleach

    600p 40 fc 0cc

    745p 25 fc 1 cc

    845p 22 fc no test cc ........added 89 oz or 12 cups

    945 30fc .5cc

    Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. tuesday

    730a 19.5 fc .5cc .........put in one bottle

    1150a 28 fc o cc. ...........Added 6 cups

    630 26 fc 0cc

    830 24 fc cc0......... added 8 cups

    1000p 25 fc ........... added 6 cups

    1040p 28.5 fc or 57 drops. O cc nothing added fingers crossed

    Xxxxxxxxxxxxxxxxxxxxxxxxxxxx wednesday

    650 a 22fc 0cc......... added 12 cups turned generator on 100%

    1p no test ................added 1/2 bottle

    324p 32fc 0cc

    615p 25fc 0cc......... Added whole bottle small..... And 1lb of cya to bring up from 50

    917p 33.5 fc

    Xxxxxxxxxxxxxxxxxxxxxxxxxx. Thursday

    715 a 27.5 fc cc0 ...........added small bottle



    I noticed last night that my cya dropped 20 since starting the slam process? I found that strange. I am also frustrated as I pride myself on my ability to keep my pool looking flawless. I mean I am always checking levels, brushing, cleaning filters, etc... So this is getting more than a little bit old to say the least especially since my pool looks great and always has.



    Photos pre slam Sunday




    Photos today



    The small shiny circle in the middle is a penny!



    The deep end



    If you have read this far congratulations! And thanks for letting me vent.
    Life is too short to smoke crappy cigars!

  2. Back To Top    #2
    Mod Squad JVTrain's Avatar
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    Re: Need to vent...

    6 FC lost overnight is a significant drop. Have you taken out any ladders and removed any lights from niches and scrubbed behind them? It could be a small algae growth in a problem area that's preventing the OCLT from passing and increasing your daily chlorine demand. Sounds like you are very good at keeping up with your pool but those are initial thoughts, considering your water looks very clear and sparkling. Check out all the nooks and crannies.

    The CYA drop would be uncommon for sure if chlorine was never too low but it can decrease in certain insufficient chlorine situations and if the pool is exposed to certain soil bacteria. Unlikely in this case and could be sampling/testing error. If you repeat the CYA test, be sure to do the test, then dump the sample back in the mixing bottle, shake and test the dot disappearance again. Repeat 3-4 times if you like to get more comfortable with the test until it's repeatable.

    Also... I also love messing with the folks in the check out line when I pick up may summer supply of liquid chlorine as well. You get some strange looks with a cart full of bottles...
    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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    JoyfulNoise's Avatar
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    Re: Need to vent...

    You should not measure the CYA at high FC. Since your shock level is quite high and, in some cases you went significantly over shock level, the CYA test can sometimes be off. The technical explanation is that the chlorinated cyanurates do not readily react with the melamine to form a precipitate. So at very high FC levels, the R-0013 reagent can show a CYA level that is lower than expected by the FC level. So in your case, since your FC was up near 30ppm, it is entirely plausible that you saw a 20ppm decrease in the measured CYA (the test itself is +/-10ppm).

    This high FC error doesn't affect most pool owners because for the majority of people, their SLAM FC level is typical less than 20ppm. Those of us that have SWGs use much higher levels of CYA this causing us to have higher shock level FCs.

    Just use your pre-SLAM level of CYA (adjusted for the extra pound of CYA you added) as you correct level and don't waste time doing the CYA test during a SLAM.


    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Need to vent...

    No ladders. Two lights. Haven't taken them out, and not really too sure about doing that because of electricity issues. I guess if I turn off the breaker to that it would be ok. So does water go behind those? Never even thought about that.
    Life is too short to smoke crappy cigars!

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    Re: Need to vent...

    Quote Originally Posted by mike_s View Post
    I noticed last night that my cya dropped 20 since starting the slam process? I found that strange.
    Not uncommon. I've experienced the same. A couple of days after the FC was back down in the normal range I had only 20 CYA where I had 40 before. I added a 5 lb. container of stabilizer and went back to 40. It seems clear to me that, in some pools at least, high FC levels will "burn off" CYA.
    20k gal. IG plaster w/spa. 2 HP Aqua-Flo "A" pump, Hayward DE6020 filter. "The Pool Cleaner".

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    Mod Squad JVTrain's Avatar
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    Re: Need to vent...

    Most lights do allow some water behind them and can be removed/serviced with the pool still full. They should be wired to a GFCI circuit so no risk of shock, etc. but you should turn off the breaker when servicing. If you can get a good picture of each, perhaps we can help you out with the model and how to approach it. Most lights have a single screw at 12 o' clock (top of the light rim) that can be removed, then the light tips forward and can be lifted out of the pool. Then you can scrub the outside of the light housing with a dilute bleach solution and scrub the niche behind the light with something like a toilet brush. No need to open the light or take out the bulb unless you see water inside it.
    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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    Texas Splash's Avatar
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    Re: Need to vent...

    ha ha. I liked the blood cleaning comment. My wife and I do things like that too after watching all the Criminal Minds episodes. So much good advice already provided. Just wanted to add a couple more items after re-reading your notes above:
    - Do all you can to never let that FC drop below 28 (assuming that your CYA is actually 70)
    - No sense running your SWG at 100% during the SLAM - most turn it off completely. (Also make sure it's off at night when doing your OCLT)

    Everyone else has you covered with info. Best of luck. Nice looking pool.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Re: Need to vent...

    Quote Originally Posted by mike_s View Post
    No ladders. Two lights. Haven't taken them out, and not really too sure about doing that because of electricity issues. I guess if I turn off the breaker to that it would be ok. So does water go behind those? Never even thought about that.
    You swim with the lights in the pool and don't have issues with electrocution! I had to do a SLAM because of a sensor issue with my SWG and the light and under rungs of my ladder were the only two places that had active algae. It was gross to say the least.
    5900 G Fiberglass IG pool (circa 1990), SWG Hayward Aqua Rite GoldLine (2013), IntelliFlo Variable Speed Pump (2013), Hayward Pro Sand Filter (circa 1990), Well water (no iron or other metals fortunately), test with Taylor K2006C, Charleston, SC

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    Re: Need to vent...



    So I took both lights out and noticed the same brown sedimate stuff that is on the lights. It was mainly ontop of the lights and only on the bottom of where the lights fit into. I scrubbed the stuff and it came off easily. We have a ton of poll on here in central Texas and this is kinda what it reminded me of when the live oaks are blooming but who knows? Regardless it is gone now. I am going to leave my lights out of the pool. I am assuming this will be ok to do as long as I do t turn them on? It gets hot on the walkway in the sun all day will they be ok there as well?

    Thanks!
    Life is too short to smoke crappy cigars!

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    JoyfulNoise's Avatar
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    Re: Need to vent...

    Cover the light with a towel to keep the direct sunlight off it. Otherwise it's fine to leave on the deck. Hit the breaker that controls the light just to make sure it can't accidentally energize.


    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Mod Squad JVTrain's Avatar
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    Re: Need to vent...

    That material on the light looks a lot like the dust from construction, specifically I bet your concrete under the light matches it pretty well when it's wet. If the light hadn't been removed since construction, that's certainly possible. Whether or not that or anything inside your niche is causing a problem... we'll see after you've scrubbed them out.
    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: Need to vent...

    Passed oclt! Musta been whatever was in the light niches. Gotta tell yall that this was pretty much a pia lol but now it's done and I can put cleaning out the light niches on my routine. How often do yall clean them? Never in my life would I have thought to clean there.

    So now If my aquapure has a hard time putting Cl in the water I know it's the unit and not something lurking in my water.

    Have to figure out how to get the fc down to the right level for my cya on the tfp chart. Any hints for that? I'm guessing adding water to the pool. Safe swimming fc levels are? Having to be out of the pool for a whole week just about did my kiddo in ( who am I kidding I'm the one who missed it the most ha ha ha)

    SLAM works even if your pool isn't green, thanks again for listening to my story.

    Mikes
    Life is too short to smoke crappy cigars!

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    Re: Need to vent...

    Quote Originally Posted by mike_s View Post
    Have to figure out how to get the fc down to the right level for my cya on the tfp chart. Any hints for that? I'm guessing adding water to the pool. Safe swimming fc levels are?
    Just let the FC drift down to the desired concentration. It's safe to swim at any FC level below the shock level for your CYA.
    20k gal. IG plaster w/spa. 2 HP Aqua-Flo "A" pump, Hayward DE6020 filter. "The Pool Cleaner".

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    Mod Squad kimkats's Avatar
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    Re: Need to vent...

    I LOVE your pool!

    Pool School - Chlorine / CYA Chart

    So long as your FC is a tiny bit under the SLAM level for your CYA it is safe to swim.

    IF your FC is so high that there is no way it will come down in time to swim this weekend I have a plan. Just let me know if you need it or not.

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    Mod Squad JVTrain's Avatar
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    Re: Need to vent...

    Woohoo! Glad you passed the OCLT!!! I clean my niches at the start of every season when I open the pool (April) and again in about August. Usually close in late September/October. I would recommend doing it when you start using your pool in the spring and when you close or are not using the pool in the fall/winter. Taking them out, then scrubbing the outside of the housing and the niche then putting them back in usually can be done in 10 minutes per light which isn't bad. Good peace of mind.

    If your SWG has been off, just leave it off until your FC gets to about 12 FC, which shouldn't take too long at warm temps and Texas sun. Then turn on the SWG again and get it dialed in to maintain 5-7 FC. Your CYA is on the high side at 90 above the recommended levels for the CYA/Chlorine chart for SWG pools but it's workable.
    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

  16. Back To Top    #16

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    Re: Need to vent...

    Few more pix then I Will continue lurking for another 7 years. Lol. Thanks a million for all of the help and encouragement, and the great test kit

    View from upstairs





    From the porch



    Life is too short to smoke crappy cigars!

  17. Back To Top    #17
    Mod Squad kimkats's Avatar
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    Re: Need to vent...

    What ya got in the keg?????

    Do ever bother going inside? You have everything you need out there!

    Such a nice set up!

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

  18. Back To Top    #18
    Texas Splash's Avatar
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    Re: Need to vent...

    Looking pretty sweet there in Round Rock. Although what really caught my eye in those last pics was the beer tap.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  19. Back To Top    #19

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    Re: Need to vent...

    Quote Originally Posted by kimkats View Post
    What ya got in the keg?????

    Do ever bother going inside? You have everything you need out there!

    Such a nice set up!

    Kim

    Im outside almost year round...that's why they make electric blankets . I have been brewing for 7 years now. Keg on the left is a Pliney IPA clone and the right is Maharaja IPA clone..

    - - - Updated - - -

    Quote Originally Posted by Texas Splash View Post
    Looking pretty sweet there in Round Rock. Although what really caught my eye in those last pics was the beer tap.
    Few more taps in the garage but it's not quite as clean looking as the outside install

    Life is too short to smoke crappy cigars!

  20. Back To Top    #20
    Texas Splash's Avatar
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    Re: Need to vent...

    Ooooooh my!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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