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Thread: need help calculating puck amount (for vacation)

  1. Back To Top    #1

    Join Date
    Mar 2014
    south central PA

    need help calculating puck amount (for vacation)

    We are getting ready to go on vacation. I have a small bucket of trichlor pucks (from when we got the pool/pool-stored ) that I was planning on using, and having a neighbor come over and check periodically. We will be gone for about 10 days.

    I lose about 1.5 - 2 ppm daily. My CYA is currently between 30-40.

    The bucket I have is 4 lbs (64 oz). According to pool math, 64 oz of trichlor would raise my FC by 20, raise my CYA by 12 and lower pH by about 1.

    So, I should still be OK for CYA using these pucks, and it appears the bucket should cover my FC loss for the 10 days?

    Is this how the pucks work, will they dissolve slowly over the 10 days? Or should I add half at first, then half after about 5 days?
    Would I just put them all into a floater device and just leave them?
    Should I be OK with this, and not adding any extra chlorine?

    I'm a little nervous about this, my pool water looks great. Do not want to mess it up!

    28 ft round ABG with ~6ft deep end, approx. 20,000 gal, 2 spd 2 HP pump, sand filter

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: need help calculating puck amount (for vacation)

    When I leave town, I raise the pool level to allow for evaporation, raise FC a little above normal, and stuff the floater full of pucks. The neighbor can probably handle dumping a jug of bleach in at least once and refill the floater if it needs it. You can deal with the fallout when you get back; as long as it didn't turn green, the chemistry can be fixed in a couple hours.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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