Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: No - It wasn't White Mold

  1. Back To Top    #1
    Taz's Avatar
    Join Date
    Jul 2010
    Location
    NE FL
    Posts
    80

    No - It wasn't White Mold

    Sometimes one should think before committing to an all-out assault on one's pool! Based on seeing white floating stuff that was not being filtered from the surface, a cc reading of 1 (first ever), and reading several threads, I thought I was in the initial stages of white mold. So, I began the shock process as if I had mustard algae by adding lot's of bleach and turning the SWG on boost. The next day no CC and still had the white particles. After a look under a magnifying glass, I discovered it was really white bug scale/parts.

    So, we lost out on a great weekend of swimming. The FC (25 ppm) is still above what I want to swim in & it is going to be 92 tomorrow!

    The moral of the story, "Don't Panic!" (courtesy of the Hitchhikers Guide to the Galaxy)
    Cheers - Taz.
    30' x 15' kidney shaped, 3.5-5.5 ft deep, wet-mix shotcrete inground, AutoPilot Digital SWG - RC35/22 cell, 36" main drain, 1 skimmer, 4 returns, Dyna-Pro 1 HP, Sta-Rite 2 (PLM100) filter, Polaris 360 cleaner, Marbletite (Marquis/Bluestone), Screen enclosure

  2. Back To Top    #2

    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,160

    Re: No - It wasn't White Mold

    Taz, don't be hard on yourself

    I've got a true white water mold issue going on in one of the pools I manage ('cottonballs' hanging off the sides in places). You were erring on the side of caution by doing what you did

    I'd say it's better to be sure that the pool has safe water to swim in, rather than to 'let it go and see what happens'.

    You are being a responsible pool owner


    (of course, it might be best to see if what you think is going on, actually is ))
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

  3. Back To Top    #3
    Taz's Avatar
    Join Date
    Jul 2010
    Location
    NE FL
    Posts
    80

    Re: No - It wasn't White Mold

    I'll pass on your mold experience.
    30' x 15' kidney shaped, 3.5-5.5 ft deep, wet-mix shotcrete inground, AutoPilot Digital SWG - RC35/22 cell, 36" main drain, 1 skimmer, 4 returns, Dyna-Pro 1 HP, Sta-Rite 2 (PLM100) filter, Polaris 360 cleaner, Marbletite (Marquis/Bluestone), Screen enclosure

  4. Back To Top    #4

    Re: No - It wasn't White Mold

    If you want to drop your chlorine some, use the pool calculator to see how much bleach it would take to raise the FC by the amount you want to lower the FC and use 3 % hydrogen peroxide to lower the FC.

    3 % hydrogen peroxide lowers FC by the same amount as an equal amount of bleach would raise it.

  5. Back To Top    #5

    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,160

    Re: No - It wasn't White Mold

    Quote Originally Posted by JamesW
    If you want to drop your chlorine some, use the pool calculator to see how much bleach it would take to raise the FC by the amount you want to lower the FC and use 3 % hydrogen peroxide to lower the FC.

    3 % hydrogen peroxide lowers FC by the same amount as an equal amount of bleach would raise it.

    James, what % bleach or does it not matter?

    Also, does the peroxide affect the pH?
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

  6. Back To Top    #6

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: No - It wasn't White Mold

    It matters. It's 6% bleach vs. 3% hydrogen peroxide where the same volume cancels each other out. The effect on pH will be for it to get lowered a little by the same amount as one would expect if that amount of FC got consumed/used. You can, of course, use stronger hydrogen peroxide and scale down the volume appropriately.
    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"

  7. Back To Top    #7
    Taz's Avatar
    Join Date
    Jul 2010
    Location
    NE FL
    Posts
    80

    Re: No - It wasn't White Mold

    As fate would have it, the autopilot digital decided to duplicate errors from Feb (which magically went away) and will not start the pump on any settings. It's been nice having the extra chlorine while the system is getting fixed. The replacement board (wasn't the pump, wasn't the tri-sensor, wasn't the control board, wasn't the relay) ought to get installed tomorrow.

    Our PB's service gut jury-rigged the pump so I could run it for a few hours a day to circulate the water. Am using a solar cover at night & partially uncovering it during the day. Water is getting up to temp (77) & CL is down to 15 ppm.

    BTW, didn't think of using peroxide to oxidize the CL. I've got most of a liter bottle of 20% peroxide my daughter needed for something or other.
    30' x 15' kidney shaped, 3.5-5.5 ft deep, wet-mix shotcrete inground, AutoPilot Digital SWG - RC35/22 cell, 36" main drain, 1 skimmer, 4 returns, Dyna-Pro 1 HP, Sta-Rite 2 (PLM100) filter, Polaris 360 cleaner, Marbletite (Marquis/Bluestone), Screen enclosure

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •