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Thread: CYA in dichlor

  1. Back To Top    #1

    Join Date
    Jul 2008
    Location
    Dallas, Tx
    Posts
    128

    CYA in dichlor

    How long does the CYA in dichlor take to register on the test? I know that pure CYA can take a week to dissolve and register, but what about the CYA in dichlor?

    Thanks!
    20k white plaster with blue quartz, IntelliFlo VS, Quad DE 100
    1000 gal spa with natural stone waterfall
    Beach entry with 2 bubblers. Pool built Spring 2013

  2. Back To Top    #2

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,085

    Re: CYA in dichlor

    It should register as soon as it is mixed by circulation. It dissolves almost right away so Dichlor is a convenient way of adding chlorine and CYA simultaneously, though unless you wanted to shock with a lot of chlorine or only needed to add a smaller amount of CYA, then it's not as good as a pure CYA product for increasing CYA by a larger amount. It's also reasonably economical when accounting for getting both chlorine and CYA simultaneously (see this post).
    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"

  3. Back To Top    #3

    Join Date
    Jul 2008
    Location
    Dallas, Tx
    Posts
    128

    Re: CYA in dichlor

    Thank you! That is exactly why I used it, I needed chlorine and wanted to boost my CYA. I was getting an increased reading after a couple days, but wasn't sure if I should be. I've had some strange CYA behavior this year with it increasing after adding dichlor then dropping back down a few weeks later. I have been targeting 40 hopefully it will stay there this time!
    20k white plaster with blue quartz, IntelliFlo VS, Quad DE 100
    1000 gal spa with natural stone waterfall
    Beach entry with 2 bubblers. Pool built Spring 2013

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