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

Thread: question on ph balance for winterized pool

  1. Back To Top    #1

    question on ph balance for winterized pool

    Hi all. Newbie here with first post. We just closed our new pool for the winter. I had assumed that the closing company would test the water and add acid to the pool to balance the ph before closing and they did not. I had tested yesterday and ph was somewhere between 7.8 and 8.0 with TA of 80 and since I had run out of MA and assumed the closing company would take care of it I left it be. The pool was completed at the end of September and I have noticed the past month and half that I need to add a quart of Muratic Acid every few days to keep the ph down to 7.4-7.6 range. I'm told this isn't uncommon for newly plastered pools. The closing service added 2 quarts of scale inhibitor and polyquat. Is there anything I should do to keep the ph lowered through the winter, or should I just let it ride until spring? I don't want to damage my new plaster due to high ph all winter but I don't want to fret unnecessarily either.

    Thoughts?
    28,800 gallons IG plaster
    Pentair CCP420 Cartridge filter
    Pentair Intelliflo VS-3050 pump
    Pentair Intellichlor IC40 SWG

  2. Back To Top    #2

    Join Date
    Jan 2009
    Location
    Cupertino, CA
    Posts
    1,966

    Re: question on ph balance for winterized pool

    I'm replying mainly to bump this... first thing is to call your builder and see what they say. I know enough to say that colder temps will increase the pH all by itself, as well as probably slow down the plaster curing process; I don't know what practical effect that will have on the plaster over the winter. But with the pool closed at least you won't have to worry about equipment issues until you open in the spring.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

  3. Back To Top    #3

    Join Date
    Jul 2010
    Location
    Philadelphia
    Posts
    134

    Re: question on ph balance for winterized pool

    I am curious in general what chemicals should be added to a winterized pool - Chlorine? pH adjusters? How often? With no movement of the water, is this proper to dump it into still water where it will concenrate without circulation? I wouldn't even be able to mix with a brush since the cover is on.

    Thanks.
    19000 gal in ground, pebble tec. Sta-rite system 3 DE filter, Aquarite SWG, raypak 406A heater

  4. Back To Top    #4

    Join Date
    Dec 2009
    Location
    Central Massachusetts
    Posts
    2,690

    Re: question on ph balance for winterized pool

    Generally once a pool is closed, it's closed. The idea is to balance the water (i.e. TA, pH, CYA, CH), raise the chlorine to shock level, blow the lines out and cover. Once that cover goes on, you really dont mess with it. Adding chemicals to uncirculated water is generally not a good idea. If you were desparate, I suppose you could remove the cover and stir in chlorine with a brush, but thats a big pain. I wouldnt want to mix acid thay way. As I said, once the cover goes on, you let it ride until spring. The thought of letting a pool go over the winter is really tough the fisrt time you do it. You spend the entire swim season testing, adjusting, babying the thing until its just the way you want it. Then one day, BAM, its covered and the weather is cold and you cant do anything. The thought that runs through your head is "my god whats gonna happen if I dont take care of this thing every day"! I know, I've been there. Trust your winterizing technique, close late, open early, and you will be suprised how easy it is to get it going again. I know the temptation is there to fool with the pool, but really, once you winterize and cover, leave it be.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

  5. Back To Top    #5

    Re: question on ph balance for winterized pool

    I will check with my builder tomorrow and update with what they say. I'm ok leaving it for the winter but don't want plaster issues.
    28,800 gallons IG plaster
    Pentair CCP420 Cartridge filter
    Pentair Intelliflo VS-3050 pump
    Pentair Intellichlor IC40 SWG

  6. Back To Top    #6

    Join Date
    Dec 2009
    Location
    Central Massachusetts
    Posts
    2,690

    Re: question on ph balance for winterized pool

    Are the lines blown out and the pool covered?
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

  7. Back To Top    #7
    Malibu07's Avatar
    Join Date
    Jun 2010
    Location
    Southeast VA
    Posts
    207

    Re: question on ph balance for winterized pool

    Where I live, most people do not blow out the lines because of the piping being well below the freeze line.
    We just covered our pool for the first time this past weekend. I have read that if you have some warm days during the winter, you can take a peek of the condition. If it looks like Algae is growing, get a bottle of Winterizer and dump it in.
    I'm keeping my fingers crossed and hope all goes well until early spring!
    14,700 gal. 14 x 28 rectangle with 2R IG by Hydra Pools, 1 hp Hayward Maxflow ll, Hayward 24" Sand Filter, Aquarite Electronic SWG, one Aqua Genie Complete Skimmer, two main drains, four returns, 2 spa jets in steps, 30ml Tidewater liner. Taylor K-2006 Test Kit

Posting Permissions

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