Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 15 of 15

Thread: SLAM complete - What should expect from my SWG

  1. Back To Top    #1

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    SLAM complete - What should expect from my SWG

    Thanks to TFP I seem to have successfully killed whatever was lingering in my water. It is now crystal clear, very little CC and almost zero OCLT. So for the first time in just over 2 season I have clean water (fought a battle all last season with chlorine levels - now I understand why and believe it's solved) and I'm not sure what I should expect from my SWG.

    I run my pump/filter 24/7 and run the SWG 24/7. Should I see an increase in FC overnight with the SWG running or should it just be maintaining FC levels overnight and throughout the day?

    Thanks!
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  2. Back To Top    #2
    zimm's Avatar
    Join Date
    May 2013
    Location
    Northern Virginia
    Posts
    421

    Re: SLAM complete - What should expect from my SWG

    I would think you should be able to generate more than enough chlorine with a 20,000 sized cell on a 11,000 gallon pool. Especially at 100% with the pump running 24/7. How old is the cell? When't the last time you looked at the plates to see if they need cleaning? What's your salt level?

    I have a 27,000 sized cell on 17,000 gallons, and I'm running 30% duty cycle 8 hours a day and have plenty of FC.
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

  3. Back To Top    #3

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    Assuming it was new when the pool people installed it (and that might be assuming too much) it would be 2.5 years old. I do clean it regularly, plates themselves look fine, some calcium build up on the brackets holding the plates that I've gotten as much off as possible. Salt is at least 3200, probably a bit higher since according to Pool Math all the bleach I added over 8 days of SLAMing added to salt levels. Visually looking into the tube I see chlorine being made but was surprised when FC didn't go up at all after I turned it back on at 100% having completed my SLAM and it ran overnight.
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  4. Back To Top    #4

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    Here are the numbers:

    Last night 10:05pm FC 4.38
    SWG running all night at 100%
    840am today FC 4.24
    SWG running all day - pool was used briefly, very hot day (near 100 degrees), about 10 hours of direct sunglight.
    505pm today FC 3.52 CC 0.23
    Measuring water directly from return line FC 3.64 CC 0.07

    Salt 3230

    CYA was 40-45, nearly 3lbs of Cyanuric Acid has been adding in past 24 hours - still a bit in the socks left dissolving.

    So...what does all that mean? I'm good at 100% maintaining FC around 3? Do I need more salt? Is my SWG failing? Something else?

    Thanks
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  5. Back To Top    #5
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: SLAM complete - What should expect from my SWG

    It is likely that you need to SLAM the pool.

    Your daytime FC loss is plausible, and likely due to the low CYA level. But overnight your FC level should have gone way up.

    I would go ahead and start SLAMing the pool. But if you want to double check, turn the SWG off in the evening and do an overnight FC loss test (described in the How To section of Pool School).
    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

  6. Back To Top    #6

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    I know that's the go to response around here but as I stated I just completed a SLAM (8 days, gallons of bleach), passing all required steps to be "done" 2 different nights. So I don't understand how that's the issue. I'm trying to diagnose a potential problem with salt level and/or function of my SWG.
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  7. Back To Top    #7
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: SLAM complete - What should expect from my SWG

    Running all day, I'd expect the FC to be way up there. I can't find any technical specs on that SWG, to see if maybe it's putting out all it can. http://sgschlorinators.com/

    It could also be low CYA.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  8. Back To Top    #8

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    Is there a direct correlation between salt level and chlorine output? Or does the SWG work as long as it's in range?

    CYA was measured at 40-45 a few days ago, 3 lbs was fed in through socks in front of return jets over the past 24 hours.

    This is the manual for the 320, 300 is just the same http://sgschlorinators.com/wp-conten...ze-OM-2012.pdf
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  9. Back To Top    #9
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: SLAM complete - What should expect from my SWG

    The manual says "Breeze 320 Produces up to .78 pounds of Free Chlorine per day"

    That's essentially 12.5 ounces which poolmath says should raise FC by 8.5 ppm in an 11000 gallon pool. That should be plenty - especially running overnight with no sun load.

    I think it's time to repeat the overnight loss test, with the SWG off. If you aren't losing a bunch, then the SWG is shot.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  10. Back To Top    #10

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    Thanks. I added 80lbs of salt tonight to get it up over 4000 and into the SWG recommended range, if it doesn't pick up after that I'll start exploring warranty replacement options. Ugh.

    I will repeat OCLT tonight.
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  11. Back To Top    #11

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    Very heavy rain late last night threw my testing out the window. Trying OCLT tonight.
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  12. Back To Top    #12
    aussieta's Avatar
    Join Date
    Jan 2014
    Location
    Langwarrin, Victoria, Australia
    Posts
    418

    Re: SLAM complete - What should expect from my SWG

    your signature lists taylor 2006 test kit but no way did those results come out of that kit
    repeat all your tests with the taylor kit including OCLT with SWG turned off
    SWG inground peanut shaped eco-bright concrete pool
    50,000 litres 13,000 gallons
    Lincoln Salt Chlorinator, 25 gram cell Sand Filter with glass media
    Taylor K2006-C test kit, Taylor K-1766 salt test, Dolphin M500 pool cleaner
    are you taking care of your pool or is the poolshop taking care of you

  13. Back To Top    #13

    Join Date
    Jun 2014
    Location
    Boca Raton, FL
    Posts
    101

    Re: SLAM complete - What should expect from my SWG

    How are you measuring salt level? You need a test source besides the SWG. SWG control panel readouts can be off quite a bit, especially if the cell is not working right. I wouldn't add more salt until you get a confirmation from an alternate test method.
    16x32 DiamondBrite kidney, 12,500 gal. (circa 1985) 3/4hp Hayward SII, Harmsco BF84, Taylor K-2006, Hayward SwimPure Plus / Tcell-15
    Boca Roton, Fl. USA.

    prior 17k gal. vinyl, Sand filter

  14. Back To Top    #14

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    My signature also lists the LaMotte Color Q 7 Pro test kit.

    My salt readings come from Aquacheck test strips, my SWG does not readout salt levels.

    Last night, passed OCLT again with SWG off all night.
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

  15. Back To Top    #15

    Join Date
    Jun 2014
    Location
    Shawnee, KS
    Posts
    41

    Re: SLAM complete - What should expect from my SWG

    UPDATE
    I don't think the SWG (SGS) is dead but it seems like it's dying???

    Here are some recent numbers
    7/8
    745am FC 6.95
    SGS on Boost all day
    310pm FC 5.28
    1015pm FC 5.09
    Actually lost chlorine during the day on BOOST

    I turned it off overnight to make sure I had no algae eating up the chlorine.

    7/9
    745am FC 4.65 (minimal loss with the SGS OFF)
    SGS still off during the day
    630pm FC 3.15
    Turned SGS back on at 100%
    1025pm FC 3.31

    Left SGS on overnight at 100% (would expect a decent boost in chlorine at 100%)
    7/10
    SGS still running all day at 100%
    830am FC 3.56
    5:15pm FC 3.58
    10:05pm FC 2.74
    Turned on to BOOST mode at 10:15pm

    We'll see what the morning brings, on BOOST mode overnight I'd expect chlorine levels to be close 5ppm?? Is that fair if it's truly working at full strength?
    11,000 gallon in-ground vinyl liner pool
    Breeze SG300 SWG, Pentair Superflow Pump 1.0hp running 24/7, Pentair SD-80 Sand Filter,
    TropiCal AquaCl T110 Heat Pump, Baracude MX 8 Robot Vac,
    Taylor K-2006 and LaMotte Color Pro Q 7 Plus Test Kits

Posting Permissions

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