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Thread: Baquacil to SWG conversion questions

  1. Back To Top    #1

    Join Date
    Jun 2009
    Red Lion, PA

    Baquacil to SWG conversion questions


    I'm new to the site and this is my first post. Thanks in advance for good advice.

    22 years on Baquacil and converting to SWG (not turned on yet).

    Here is the situation: New equipment installed 3-1/2 weeks ago with Baquacil to zero three weeks ago. So far all the pool company has asked us to do is keep adding 3 or 4 lb/day of CalHypo in 4-day series followed by water analysis. So far 72lb of CalHypo, supposedly low FC and advised to continue 4lb/day of CalHypo. Clouds up upon CalHypo addition.

    Got suspicious and got my own Taylor Service Complete DPD kit. TC over 40! Am I getting bad advice (i.e. is the TC so high they are getting bogus readings)? Added 600lb salt and 4lb CYA yesterday. Added 192oz Clorox today and no cloudlyness.

    What should we do? Thanks!

    Appearance: Crystal clear. No Baqua-goo in over a week.
    0.5 FC
    40+ TC
    7.4 pH
    130 TA
    270 CH
    0 Phosphates
    22yr pool owner, 21 yrs Baquacil, installed SWG 2009 - (22000 gal Vinyl In-ground pool)(Pool Pilot DG-220 SWG)(Hayward S244T Sand Filter 3.1 sq ft area 20 gpm)(Hayward SP2607X10 1hp pump)

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Baquacil to SWG conversion questions


    Welcome to the forum. Sounds like the pool company has given you incomplete information. Look up in Pool School on the upper right of the page and read How to Convert your Baqua Pool to Chlorine. It'll answer some of your questions and prompt you to ask us some as well.....that's what we like.

    You will do much better finishing that conversion doing your own testing and not using any more Cal Hypo.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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

    Re: Baquacil to SWG conversion questions

    TC at 40 is possible, though probably not completely accurate. The CC level does sometimes go very high during a baquacil conversion. However, the DPD test is not at all precise at high FC or CC levels. You will really want a FAS-DPD chlorine test to complete the conversion, because you will need precise readings to know when you are done.

    Take a look at out baquacil conversion instructions. They spell out the whole process fairly throughly.

    I encourage you to start a topic in the Baquacil - Use and Conversion area of the site. You can read about other people's conversion process and gets lots of advice all the way through your conversion.
    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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