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Thread: Implementing a new SWCG

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    RCDuck's Avatar
    Join Date
    Jun 2008

    Implementing a new SWCG

    New IG gunite pool owner... plannning to add salt and start up the SWCG in the near future and I have a couple of questions.

    One, I used a test strip to check the current salt content of the pool prior to adding any salt. It indicated 800 ppm... the SWCG which is set to 00% production indicates a salt level of 1,100. Are those results likely accurate for a 3 week old pool that was started up with pucks and been chlorinated with bleach only for the last week? I also tested the fill water and according to the test, it did not contain a measurable salt level.

    Two, I have a 2 speed pump... how will the SWCG be affected by running the pump on low speed as compared to running it on high? Will the same amount of chlorine be produced regardless of pump speed? I usually run the pump on high for about 4 hours while the Polaris is running and then have the pump switch to low speed for an additional 8 hrs. Will I need to do this differently with the SWCG?
    26,000 IG Pool (Gunite w/Premix Marbeltite), Jandy Stealth 2 speed pump, Jandy CL460 Cartridge, Jandy SWG, Nature2 (Disabled), Ultrapure Ozone, Polaris Cleaner, Jandy PDA controller

  2. Back To Top    #2

    Join Date
    May 2008
    Fair Oaks Calif

    Re: Implementing a new SWCG

    I added a Pentair IC40 a month ago with similar results. It first it read differently then test strips. I then found link in this forum to adjust reading on IC40 now everything matches and pool is very clear. Maybe there is some type of setup adjustment for Jandy similar to the Pentair.

    I also have a two speed pump and again speaking for the Pentair unit there is an indicator to show if flow rate is acceptable. As long as flow meets requirement unit produces chlorine at rated levels. I have not had any problems no matter what pump speed is engaged. I am running at 20%, your pool is larger than mine but I expect you will be able to find combination of pump run time and SWG output that works for you,

    I have been running pool sweep (high speed) for 3 hours and low speed for 7 hours spread over two different times. FC levels have been maintained without any problems.

    I am sure someone with Jandy SWG can add further comments. Possibly there are parameters on the Jandy that need to be set similar to the Pentair.
    17000 gal free form plaster pool with 900 gal spillover spa, shared 2 HP 2 speed pump, cartridge filter, Pentair IC40 SWG, solar and gas heater, 1 hp pump for water features, 1.5 hp pump for spa. Dolphin Diagnostics robotic cleaner.

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Implementing a new SWCG

    A starting salt level of 800 to 1,100 is fairly common, even with new water. And having the strips and the meter in the SWG disagree by 300 is well within the expected precision of the test/meter.
    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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