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Thread: I have read several posts regarding converting

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    Join Date
    Mar 2011
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    Hurricane, WV
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    I have read several posts regarding converting

    I have read several posts regarding converting from Baquacil to chlorine. In the fall when winterizing I empty my sand filter prior to bringing the pump assembly indoors for winter. I want to convert this spring. I read about changing the sand after the conversion, but do I need to fiil my filter with sand, then convert, then change sand or can I convert, then add new sand? Also I plan on buying the TF-100 test kit, but does it measure the bacquacill content? If not, how do I measure? Just need a little help. Thanks.
    Mhwhited
    13,500gal AG pool
    100# Haywoard Sand filter
    1HP 35GPM Pump

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    JasonLion's Avatar
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    May 2007
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    Re: I have read several posts regarding converting

    Welcome to TFP!

    You can do the conversion without a filter at all, but it will go more quickly if you fill with sand, and then replace the sand afterwards. The one thing you don't want to do is to use the filter without sand in it, as that could permanently clog the laterals.

    The TF-100 will not measure the baquacil level. If you are doing a conversion there is no need to measure the baquacil level.

    If you haven't already, you should read the conversion instructions at Pool School, see the large button near the top right of every page of this site.
    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

  3. Back To Top    #3

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    Re: I have read several posts regarding converting

    The only thing a measurement of the Baquacil levels will tell you is a rough idea of how much chlorine will be needed for the conversion and how long it will take, but unless you were planning on intentionally doing a partial drain/refill to lower the Baquacil level, then it's a moot point.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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    Re: I have read several posts regarding converting

    Quote Originally Posted by mhwhited
    Also I plan on buying the TF-100 test kit,
    When doing a conversion, you will need plenty of reagents. Be sure to get extra R-0870 and R-0871.

  5. Back To Top    #5

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    Re: I have read several posts regarding converting

    I believe one key factor to converting is to start the conversion at the startup in the spring. After closing the pool last fall, with the pool sitting all winter, all the baquacil was gone. During the conversion, the only color change was a slight greenish yellow tint. I added bleach all day yesterday, pretty much hourly, then last night checked the FC and added enough to get the FC back to 15ppm. Checked the FC this morning, and FC was 14.5. I dumped the sand in the filter, found no Baqua-goo. I have now refilled the filter with sand and ready to add the CYA. I may be wrong, but from this experience, I came to the conclusion that the baquacil must have been zero or close to it, so no goo and cleaner conversion. Comments?
    Mhwhited
    13,500gal AG pool
    100# Haywoard Sand filter
    1HP 35GPM Pump

  6. Back To Top    #6
    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: I have read several posts regarding converting

    Certainly lower baqua levels helps the conversion go more quickly, and the easiest way to have low levels is to do the conversion in the spring.
    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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