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Thread: SWG first time maintenance / afraid to raise CYA

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    SWG first time maintenance / afraid to raise CYA

    Forgive my ignorance on here - and thank you for your help and patience- We had the pool installed October 2012 and we are really just learning how to care for it now as we go along. So I will understand those of you who slap your foreheads when I ask:
    1. - how do I know if I need to clean the cell in a SWG (we haven't cleaned it yet )
    2. - how do I get to it?

    I am asking this because last year we ran our SWG at 10 percent and sometimes that was creating too high of a FC level. This year I moved it up to 50% and I am still dropping a gallon of bleach in every 4 days just to keep the FC at 3.

    I know the drop in FC could be because of something growing in there even though the pool is clear.
    I also know that it could be just going because of the sun and low CYA
    But I also recently learned that my SWG cell is supposed to be soaked in acid every 3 months or so.
    (You can shake head in disgust now)

    My salt numbers on Sunday were 2700 and I added 70 pounds of salt to make sure the SWG had what it needs.

    My pool numbers tonight without adding any bleach since Saturday night:

    FC 3 CC .5 or less PH 7.6- 7.8 TA 90 CYA 40 (repeated the test several times) CH 80 Salt 3400 (SWG says it is now too high - but I hear rain is on the way tomorrow and the pool could use a little water)
    Memorial Day weekend the CYA was 60 - but we had a number of heavy rains and I drained a few inches a couple of times. Is it possible to drop like that?

    I plan to add stabilizer to raise CYA but I am afraid because of the horror stories I have read on here about people with really high CYA who have to drain their pools. Pool Math says that I should add 92 oz of stabilizer to bring CYA up to 70. I am a little nervous to do that much - especially because I overdid the salt when I followed the rec of Pool Math

    I am considering following the directions for adding borates to help stabilize the numbers once I get this all balanced

    What do you think?
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by tcasto View Post
    I am asking this because last year we ran our SWG at 10 percent and sometimes that was creating too high of a FC level. This year I moved it up to 50% and I am still dropping a gallon of bleach in every 4 days just to keep the FC at 3.
    How are you setting the IntelliChlor to 10% or 50%?
    Do you have automation?
    What is your pump run time?

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    JasonLion's Avatar
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    Re: SWG first time maintenance / afraid to raise CYA

    Bring up CYA in two or three smaller steps, so you don't accidentally go over.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    elwood58's Avatar
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    Re: SWG first time maintenance / afraid to raise CYA

    Get your CYA up to 70 and give us some detail on Pump Run Time. I assume that you are using the Less/More buttons on the Intellichlor to select your percentage. For example, if you are running your pump for 10 hours, with the Intellichlor set at 10%, you are generating chlorine for 1 hour. An FC of 3 will be great if you get the CYA up to the recommended (Pool Math) range. As said above, approach the CYA number in small steps so as not to overshoot.
    19204 Gallon L Shape with a 10X10 2nd Step Baja Ledge. Intellichlor IC-40, IntellipH, Cartridge Filter, Pentair Heater/Chiller (Heat Pump). Tons of Deck with Deck Jets. Construction Complete 6/5/17.

    "If you don't measure it, you can't manage it!"

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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by elwood58 View Post
    Get your CYA up to 70 and give us some detail on Pump Run Time. I assume that you are using the Less/More buttons on the Intellichlor to select your percentage. For example, if you are running your pump for 10 hours, with the Intellichlor set at 10%, you are generating chlorine for 1 hour. An FC of 3 will be great if you get the CYA up to the recommended (Pool Math) range. As said above, approach the CYA number in small steps so as not to overshoot.
    Hi again and thanks to everyone for your help!

    I am using the control panel to adjust the SWG


    https://www.flickr.com/photos/123231...n/photostream/


    Pump run time is 7 hrs per day. The schedule was set up by the pool guy when we first got the pool and I have not played with it since. I was/am afraid to mess with it. I changed the SWG percentage back to 20% last night.
    The kids and hubby swam in it til 9:30pm and the pump does not run over night.

    Numbers as of 8am this morning: FC 2.5 CC.5 (barely) PH 7.8 CYA 50 (I think last nights test was wonky)

    I am not sure if I have something that needs a slam in the pool - overnight after kids swam it dropped .5 Do I need to slam.
    And the CYA level is still low at 50 but I am going to heed your advice and proceed conservatively with stabilizer.
    Last edited by tcasto; 06-18-2014 at 09:08 AM. Reason: wrong picture
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    Re: SWG first time maintenance / afraid to raise CYA

    One of the best ways to know is to perform the OCLT:
    http://www.troublefreepool.com/conte...loss-test-oclt

    Make sure you shut your SWG off before starting the test.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by RobbieH View Post
    One of the best ways to know is to perform the OCLT:
    http://www.troublefreepool.com/conte...loss-test-oclt

    Make sure you shut your SWG off before starting the test.
    Thanks!
    Based on the criteria for the OCLT I did that last night. Our pump does not run over night and we lost just .5 between 9pm and 9am
    So I am beginning to think my SWG is just not keeping up because it needs to have the cell cleaned?
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    zimm's Avatar
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    Re: SWG first time maintenance / afraid to raise CYA

    intellichlor cleaning instructions

    You can make your own end cap with a PVC threaded cap instead of their "kit"
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
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    JasonLion's Avatar
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    Re: SWG first time maintenance / afraid to raise CYA

    Almost certainly not keeping up because you have the CYA level too low and because you have the percentage setting too low. While there is a remote chance the cell needs to be cleaned, nothing you have said in any way suggests that.
    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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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by zimm View Post
    intellichlor cleaning instructions

    You can make your own end cap with a PVC threaded cap instead of their "kit"
    Thanks for the link - I will explore the website since we cannot find the manual that came with the unit. I may just ask Mr. Pool Guy for a lesson in how to clean the cell - in the past they would just send the guy over while I was not home and leave me a hefty bill. I would rather learn and save the money going forward but I guess that's why he comes when I am not home.
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by JasonLion View Post
    Almost certainly not keeping up because you have the CYA level too low and because you have the percentage setting too low. While there is a remote chance the cell needs to be cleaned, nothing you have said in any way suggests that.
    Thanks, I was hoping that was the issue. I still have to become familiar with the SWG and be able to clean the cell. I am guessing that it is overdue simply because we have never done anything with it since the pool was built in Oct 2012.

    In the meantime, based on Pool Math and the test results I have to add 59 oz of stabilizer. I am thinking I will add half that amount and test again Friday morning. I also would like to lower the TA - Pool Math says I should add 50 oz of muriatic acid. That will lower my PH too - which will end up being good since it drifts up with a SWG. I am going to add a little bleach to keep the FC up while I wait for the CYA to bump up a bit.
    Does this sound ok?
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    Re: SWG first time maintenance / afraid to raise CYA

    Most people never need to clean the SWG cell. You should only clean the cell if you have white chalky deposits on the cell plates. With CH at 80 the chances of that happening are very near zero.

    If adding granular CYA, give it a full week to dissolve before retesting.

    I wouldn't worry too much about your TA level. Just lower the PH to around 7.2 each time it gets to 7.8 until the TA comes down into range.

    Addling a little bleach sounds good. I would also raise the percentage setting a bit.
    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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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by JasonLion View Post
    Most people never need to clean the SWG cell. You should only clean the cell if you have white chalky deposits on the cell plates. With CH at 80 the chances of that happening are very near zero.

    If adding granular CYA, give it a full week to dissolve before retesting.

    I wouldn't worry too much about your TA level. Just lower the PH to around 7.2 each time it gets to 7.8 until the TA comes down into range.

    Addling a little bleach sounds good. I would also raise the percentage setting a bit.
    Thanks so much! You guys are the best! And my kids will be thrilled that they can jump in the pool today after school before the rain comes in. Thanks again
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    Re: SWG first time maintenance / afraid to raise CYA

    DITTO raising the percentage. For example, with the high temps and sun I'm experiencing right now, I'm running my SWCG 12 hours at 80% and just keeping up! Not saying that's what you need by any means. The idea is to play with the settings to keep up your target FC level and NOT having to use bleach except to catch up to the target level (such as you need to do now). Or if you should have an algae bloom which shouldn't happen if you're keeping your FC at an adequate level and CYA where it needs to be.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
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    Re: SWG first time maintenance / afraid to raise CYA

    I'm running exactly the same percentage and hours and I am just holding at 5 ppm.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    Re: SWG first time maintenance / afraid to raise CYA

    We still have the hottest months in front of us! This is my first year with a salt pool so, I'm sure I'll have to adjust my settings in the not too distant future. I got my FC up for a 2 week vacation and it has pretty much held at what I had before I left. I'm experiencing some high evaporation rates lately and need to top off my water level at least weekly.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by timerguy View Post
    DITTO raising the percentage. For example, with the high temps and sun I'm experiencing right now, I'm running my SWCG 12 hours at 80% and just keeping up! Not saying that's what you need by any means. The idea is to play with the settings to keep up your target FC level and NOT having to use bleach except to catch up to the target level (such as you need to do now). Or if you should have an algae bloom which shouldn't happen if you're keeping your FC at an adequate level and CYA where it needs to be.
    Thanks so much! This is good information.... I was under the assumption that the higher the percentage level, the shorter the SWG cell life. That's why I was reluctant to raise it too much. Also last year I kept it at 20 percent the whole season - but my CYA was higher last year. We had a lot of rain/snow over the winter/spring and I had to drain several inches a few times to make sure the skimmer works efficiently. So I am off to the pool store to get some stabilizer and muriatic acid.
    Thanks for your help
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by timerguy View Post
    We still have the hottest months in front of us! This is my first year with a salt pool so, I'm sure I'll have to adjust my settings in the not too distant future. I got my FC up for a 2 week vacation and it has pretty much held at what I had before I left. I'm experiencing some high evaporation rates lately and need to top off my water level at least weekly.
    Wow! You have a more of a concern with the sun/heat than I do here in eastern PA! Congrats on getting your pool balanced! It's nice when you get things on autopilot. As far as evaporation goes - I was not firing on all pistons when I drained 3 inches out of the pool last Friday. I wish I had just let it be.... if it doesn't rain enough tonight I may have to add some! Thanks for your input - enjoy your week
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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    Re: SWG first time maintenance / afraid to raise CYA

    Yes, I'm praying for rain here too! You need to stay away from the pool store to buy your chems! Stabilizer can be bought at most Walmarts for $20/6.5 lbs http://www.walmart.com/ip/My-Salt-Po....5-lb/34752155 and MA at lowes or Home depot. Compare the prices on line to see.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
    CircuPool Si-45 SWCG System
    Polaris 280 vacuum/Polaris PB4-60 boost pump
    Pentair IntelliFlo VS 3hp Pump--Pentair sand filter

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    Re: SWG first time maintenance / afraid to raise CYA

    Quote Originally Posted by timerguy View Post
    You need to stay away from the pool store to buy your chems! Stabilizer can be bought at most Walmarts for $20/6.5 lbs and MA at lowes or Home depot. Compare the prices on line to see.
    Will do! I did not realize that Lowes and Home Depot sold MA. That's why I was going to just get both at the pool store.
    Thanks
    22Kgal (18x36 3.5-6ft), IG,Vinyl,DE 36sqft Filter -90GPM flow rate, Pentair Whisperflow Pump,SWG Intelichlor, UltraTemp Heat Pump, New 10/2012 Bucks County PA

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