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

Thread: Is the SWG dying or is it something else?

  1. Back To Top    #1
    Dabby's Avatar
    Join Date
    Aug 2010
    Location
    Saginaw, TX
    Posts
    41

    Is the SWG dying or is it something else?

    A couple of months ago, the display was indicating low salt, 2600. I cleaned the cell which had some deposits, and added 40 lbs of salt and it increased to 2800 as expected. I added another 40 lbs, but no change was indicated.

    Everything worked fine until recently. The salt level kept decreasing until finally the generator shut itself off saying extremely low salt level. It indicated 2300 before it shut down. There has been no significant rain or overflow that I am aware of.

    I checked the cell again and it had no visible deposits. I cleaned it anyway, but that made no difference. I am going to have the water tested (Leslie's), but from what I read on the forum, the tests can vary greatly. In the event the tests don't show a low salt level, is there something else I can check before shelling out $400-$500 for a new cell?

    The cell is a T-Cell-15. It was installed with the pool in Sept 2010. I run the generator at 30% or less all year. Is there something I can be doing that would lessen the life span? Everyone else I see on the forum is getting over twice the life out of theirs.
    24K gal, QuartzScapes plaster, Hayward EcoStar 2 hp variable speed pump, Hayward 525sqft SWIMCLEAR cartridge filter, Hayward Aqua Rite SWG, Polaris 280 pool cleaner with Hayward booster pump, Hayward 1.5 hp Tristar pump for water features, Aqualogic PS-4 controller with wireless desktop remote.

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,089

    Re: Is the SWG dying or is it something else?

    Does your pool have an auto-fill?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,670

    Re: Is the SWG dying or is it something else?

    The pool store should be accurate enough for the salt test. This test will eliminate a lot of guessing on our part. A lot of times when a SWG starts reporting a low salt level the cell is starting to die. You should always test the salt level prior to adding any salt.

    Have you needed to clean the cell often, each cleaning will reduce the cell life some. Are you running the pump 24/7 along with the 30% setting?

    Post all of the test results you can get. Of course the best results would be from a reliable test kit, but for now we will live by what you can get.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  4. Back To Top    #4
    Dabby's Avatar
    Join Date
    Aug 2010
    Location
    Saginaw, TX
    Posts
    41

    Re: Is the SWG dying or is it something else?

    Ok, the salt tested 3400 at Leslie's, so low salt is not the problem.

    I have a variable speed pump. During the summer, I run it on high for three hours while the pool cleaner is running, then on low for 11 hours with the SWG set at 25-30%. In the winter, the run times are 2 hours on high and 10 hours on low with the SWG usually less than 15%.

    I don't have auto-fill. It is connected to the sprinkler system and is on a timer.

    The cleaning I did a couple of months ago was the first acid soak I've done. I used a ratio of 4 parts acid to 1 part acid. Before, I had only sprayed it out and I only did that maybe 3 times.

    I am off to have Lesle's test the cell. I'll post the results when I get back. I will also post my other test results.

    This is really going to suck if the cell lasted less than 3 years.
    24K gal, QuartzScapes plaster, Hayward EcoStar 2 hp variable speed pump, Hayward 525sqft SWIMCLEAR cartridge filter, Hayward Aqua Rite SWG, Polaris 280 pool cleaner with Hayward booster pump, Hayward 1.5 hp Tristar pump for water features, Aqualogic PS-4 controller with wireless desktop remote.

  5. Back To Top    #5

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,670

    Re: Is the SWG dying or is it something else?

    Get the cell tested, but it seems to be failing. It does seem like you didn't get as much out of it as it should have, but there might be some things you can do to get some more life out of future cells. You have long run times for the pump and depending on what chem levels you are maintaining you might be able to make some adjustments to help you out in the future.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  6. Back To Top    #6
    Dabby's Avatar
    Join Date
    Aug 2010
    Location
    Saginaw, TX
    Posts
    41

    Re: Is the SWG dying or is it something else?

    Well the cell failed the test.

    When I tested this morning:
    FC = .5 (I've raised to 3.5 with bleach)
    CC = 0
    pH = 7.8 (I've lowered to 7.5)
    TA = 60
    CHA = 700 (another issue)
    CYA =70

    What adjustments can I make?
    24K gal, QuartzScapes plaster, Hayward EcoStar 2 hp variable speed pump, Hayward 525sqft SWIMCLEAR cartridge filter, Hayward Aqua Rite SWG, Polaris 280 pool cleaner with Hayward booster pump, Hayward 1.5 hp Tristar pump for water features, Aqualogic PS-4 controller with wireless desktop remote.

  7. Back To Top    #7

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,670

    Re: Is the SWG dying or is it something else?

    Since the FC dropped so low, I'd put in enough to raise the FC up to 8 ppm. FC 3 ppm is as low as you should ever let get down to.

    What are your target levels for FC and has the SWG been maintaining those levels with your above settings? If the CYA was low, then that would have been the main adjustment that you could have made.

    From all the information you have listed, I don't see much else that can be done to improve the cell life. They say you should expect 3-5 year life span for the cell, you almost got three and your pool size is large, so I would say you got the bare minimum expected life span out of the cell.

    By chance is it covered under a 3 year warranty? If this was a new pool install you might have a 3 year warranty, worth a check.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  8. Back To Top    #8
    Dabby's Avatar
    Join Date
    Aug 2010
    Location
    Saginaw, TX
    Posts
    41

    Re: Is the SWG dying or is it something else?

    Ok, I'll add more bleach. Should I try to keep it around 8 ppm? Since I've never had to add my own chlorine before, how much bleach and how often should I expect to be adding? Just need to know how many gallons to have on hand.

    With the CYA at 70, I was trying to keep the chlorine at around 5 ppm, but I was usually having a hard time keeping it down. It was always high and I had to keep adjusting the SWG down. The CYA never got below 60 before I added more. Would keeping the CYA higher help?

    I sent an email to Hayward, and I plan on calling them if I don't hear from them by next weekend. I think we are right at the end of three years. Hopefully they'll help.
    24K gal, QuartzScapes plaster, Hayward EcoStar 2 hp variable speed pump, Hayward 525sqft SWIMCLEAR cartridge filter, Hayward Aqua Rite SWG, Polaris 280 pool cleaner with Hayward booster pump, Hayward 1.5 hp Tristar pump for water features, Aqualogic PS-4 controller with wireless desktop remote.

  9. Back To Top    #9
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Is the SWG dying or is it something else?

    It does seem like short life. I have read that many cells are designed for 10000 hours. In your case 3years*365days*24hrs*14hrs/24hrs*0.3= 4599 hours (if you always ran at your summer rate).
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  10. Back To Top    #10
    Dabby's Avatar
    Join Date
    Aug 2010
    Location
    Saginaw, TX
    Posts
    41

    Re: Is the SWG dying or is it something else?

    And I don't, so it would be even less. I may have to try one of the aftermarket brands I've been reading about.

    Should I lessen the run time of the pump? The flow rate on high is 90 gpm and on low it's 35 gpm.
    24K gal, QuartzScapes plaster, Hayward EcoStar 2 hp variable speed pump, Hayward 525sqft SWIMCLEAR cartridge filter, Hayward Aqua Rite SWG, Polaris 280 pool cleaner with Hayward booster pump, Hayward 1.5 hp Tristar pump for water features, Aqualogic PS-4 controller with wireless desktop remote.

  11. Back To Top    #11
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Is the SWG dying or is it something else?

    I would look at running your swg closer to 100% and shortening your pump run time. Take a look at this pool school article: http://www.troublefreepool.com/pool-.../pump_run_time
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  12. Back To Top    #12
    Dabby's Avatar
    Join Date
    Aug 2010
    Location
    Saginaw, TX
    Posts
    41

    Re: Is the SWG dying or is it something else?

    Wow, that is way shorter than what I'm doing. I remember reading when we first got the pool that you should run the pump long enough to turn the pool over 1 1/2 times. According to this article, I should be running the pump 8 hours instead of the 14 hours I'm doing now. If I only run the pump 8 hours, what time of day would be the best time to start?
    24K gal, QuartzScapes plaster, Hayward EcoStar 2 hp variable speed pump, Hayward 525sqft SWIMCLEAR cartridge filter, Hayward Aqua Rite SWG, Polaris 280 pool cleaner with Hayward booster pump, Hayward 1.5 hp Tristar pump for water features, Aqualogic PS-4 controller with wireless desktop remote.

  13. Back To Top    #13

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,670

    Re: Is the SWG dying or is it something else?

    'There isn't a best time to run a pool that fits everyone. Some people get electrical rate discounts for running at night so they take advantage of those times. Others want to take advantage of their water features and run at the time that fits their schedule. Then their are some who break the run times in to segments; morning, evening, night, or what works best for them.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  14. Back To Top    #14
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Is the SWG dying or is it something else?

    Ideally running the swg during the sun hours reduces it's total workload since it can maintain an FC, as compared to a night run time where it must overshoot some to have some still left the next night to protect against algae. However, this decrease in cell life due running at night in tiered markets can be dwarfed by the difference in the tier pricing.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  15. Back To Top    #15
    Dabby's Avatar
    Join Date
    Aug 2010
    Location
    Saginaw, TX
    Posts
    41

    Re: Is the SWG dying or is it something else?

    Thanks for the suggestions. I think I'll start off with noon to 8.
    24K gal, QuartzScapes plaster, Hayward EcoStar 2 hp variable speed pump, Hayward 525sqft SWIMCLEAR cartridge filter, Hayward Aqua Rite SWG, Polaris 280 pool cleaner with Hayward booster pump, Hayward 1.5 hp Tristar pump for water features, Aqualogic PS-4 controller with wireless desktop remote.

Posting Permissions

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