Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: new and some algae questions

  1. Back To Top    #1

    Join Date
    Jul 2007
    Location
    ontario, canada
    Posts
    82

    new and some algae questions

    I finally joined today. I'd been reading the posts at poolforum for about a week and I think I've managed to clear out a horrible algae problem in only a few days, thanks to all the great advice I read on these forums. Everyone is still shocked that I managed to do it with my bottles of bleach. BF actually said...I can't believe you got that to work...I thought it was just another one of your "great ideas".
    Now I'm scared to stop shocking. My FC was 4 last night and this morning, PH 7.4, CC 0, TA 60. The water is blue and has been since yesterday afternoon but still remains quite cloudy. I'm about to go out and vac. to waste and brush.
    Here's my question...am I safe to maintain my chlorine levels now or should I continue shocking still? And if so...where does it end?
    Thanks again and any suggestions are welcome. I only wish I'd found these forums three years ago when I ended up with a pool.
    [color=#0000BF]16x32 inground vinyl liner approx 23 000 gallons
    22" cyclone sand filter, 1 HP pump
    solar cover, solar heating panels
    Taylor K-2006 test kit

  2. Back To Top    #2
    Welcome, and congrats on the great job

    Since you posted FC and CC numbers, I'm assuming you have a test that shows them. Dip sticks or FAS/DPD drop test?

    What is your stabilizer, or CYA level?

    Generally, if you shock in the evening and hold the FC overnight, you've probably killed everything in the pool and now it's a matter of allowing adequate filtration time to get the dead matter out.

    How high did you shock to? Did you hold this amount over nght?

  3. Back To Top    #3

    Join Date
    Jul 2007
    Location
    ontario, canada
    Posts
    82
    thanks for the welcome...and even more so for the congratulations...I can't help feeling a major sense of accomplishment over this one thanks to all the advice.
    I'm using DPD drop testing. I need to go in to have my CYA tested again this week as my kit doesn't test for that but I would estimate it at 70 based on my previous reading and the amounts added since.
    I can only read the chlorine levels up to 10 on my test kit but using the bleach calculator I figure I was shocking up to 20 at night. Last night it was at 4 and although I'd planned to shock again the pool got covered up and I fell asleep. I think I was worn out from all my intensive pool maintenance So it held the 4 over night.
    What's next?
    Thanks again
    [color=#0000BF]16x32 inground vinyl liner approx 23 000 gallons
    22" cyclone sand filter, 1 HP pump
    solar cover, solar heating panels
    Taylor K-2006 test kit

  4. Back To Top    #4

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,401
    Survey,

    Keep your chlorine levels high 'til your water looks the way you want....sparkling!!! You're on the homestretch so don't let the Cl down 'til you've got your water right. Very nice work!!
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  5. Back To Top    #5
    Holding 4 ppm FC overnight when covered is a good sign, seems to point to nothing left in the pool to oxidize. I'd keep vacuuming and filtering at this point if it were me. Oh, and maintaining that FC

    With an estimated CYA of 70 your FC target would be 8 ppm. Minimum is 5.25 ppm. Your 4 ppm is lower than both. I'd add enough bleach to get to 8, and have your CYA tested so you know for sure. If it's actually lower, no harm done. If it's correct, 4 ppm likely isn't adequate and your risk algae taking hold again.

    Good Luck

Posting Permissions

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