Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 13 of 13

Thread: Yet another new pool owner question

  1. Back To Top    #1

    Join Date
    Jun 2007
    Location
    Charleston, SC
    Posts
    33

    Yet another new pool owner question

    I just bought a home w/ a 12 - 15k gallon (still need to determine that one) IGP and my first question is regarding the BBB method. It sounds great! I'm sure the pool supply stores don't like that information getting out. Unfortunately I already bought one of those $60 buckets of 3" tablets because the pool has a chlorine tablet feeder system. If i use the BBB method, should i just keep the feeder empty and on "0" (closed) or should i leave a tablet in there at all times?

    Random question of the day: What the heck is SWG?? I see it in alot of forum user's signatures, but what is it? It's not in the pool abbreviations thread either...
    35+ year old 16 x 30 oval, depth 4 ft to 8 ft, in ground concrete pool approx 17,000 gallons-using BBB method

  2. Back To Top    #2

    Join Date
    Jun 2007
    Location
    Charleston, SC
    Posts
    33
    Also, my pool looks just like this one only without the hottub on the side. How can i determine the volume in gallons since it's not a perfect circle or rectangle?
    Attached Images Attached Images
    35+ year old 16 x 30 oval, depth 4 ft to 8 ft, in ground concrete pool approx 17,000 gallons-using BBB method

  3. Back To Top    #3

    Join Date
    May 2007
    Location
    Enid, Oklahoma
    Posts
    53
    SWG == Salt Water Chlorine Generator.

    If your CYA is low or non-existent you could use the pucks to help give it a boost and keep chlorine in the pool at the same time. I have been using up my left-over pucks from last year for this purpose. They are also good if you are going to be gone for a few days and cant add bleach.
    20K IG Fiberglass, 3/4 hp Sand, Hayward ColorLogic

  4. Back To Top    #4
    ktdave's Avatar
    Join Date
    May 2007
    Location
    Katy, TX
    Posts
    888
    Not sure about the pucks, but I know if you use them exclusively all summer you may build up a high level of cyanuric acid (aka CYA or stabilizerl) that can lessen the effectiveness of chlorine as a sanitizer.

    SWG, is probably better represented by SWCG. Both are acronyms for salt water chlorine generators.

    Welcome to TFP!

    Dave
    11,000 gal. gunite w/midnight blue and white pearl PebbleTec
    Intelliflo 4x160 pump
    Intellichlor IC-20 SWG
    Pentair cartridge filter 420 sq. ft.
    Mastertemp 400K BTU heater
    Legend Platinum cleaner
    Pool School
    JasonLion's Pool Calculator
    TF Test Kits

  5. Back To Top    #5
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    Tablets/pucks add CYA to your water constantly. Eventually your CYA level gets too high and you have problems. Using the BBB method you should stop using pucks (except in some unusual situations).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  6. Back To Top    #6
    ktdave's Avatar
    Join Date
    May 2007
    Location
    Katy, TX
    Posts
    888
    Quote Originally Posted by dolemite77
    Also, my pool looks just like this one only without the hottub on the side. How can i determine the volume in gallons since it's not a perfect circle or rectangle?
    You can probably consider it oval and use BleachCalc to get your pool volume. When you open the program, go to "more calcs" at the top left and find "pool volume". For avg. depth, just take your shallow depth + deep end depth and divide by 2.
    11,000 gal. gunite w/midnight blue and white pearl PebbleTec
    Intelliflo 4x160 pump
    Intellichlor IC-20 SWG
    Pentair cartridge filter 420 sq. ft.
    Mastertemp 400K BTU heater
    Legend Platinum cleaner
    Pool School
    JasonLion's Pool Calculator
    TF Test Kits

  7. Back To Top    #7

    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,160
    Dolmite, if you can get a perimeter measurement, you can multiply that # by 7.5 and multiply that # by the average depth to get an approximation of the gallonage (if you are doing the math for chem dosing purposes, assume the gallonage is ~ 20% less - always add less chem than you think you need, it's easier to add more of something than to have to add another chem to 'counteract' an overdose or, even worse, drain and rifill some of the water) Also, in addition to what Jason said, the pucks will quickly drop your pH and if you don't stay on top of it will start harming the pool equipment. Glad you found this site and are willing to properly care for your pool! - There are a lot of great people here who are willing to help you with any problem you encounter - hopefully you'll only be sharing stories of the great time you're having with your 'backyard oasis'
    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!)

  8. Back To Top    #8
    From_Arizona's Avatar
    Join Date
    May 2007
    Location
    Glendale, AZ
    Posts
    212
    Waste -

    Either I have had to many beers or your calculation doesn't work...

    My pool 109' x 7.5 = 817.5 x 4' = 3270 gallons is incorrect. What am I missing???

    thank you
    1980's Shasta built 30,000 gal inground diving pool. Pebble-tec interior. Pentair DE Filter. In ground pop-ups. Hayward Navigator sweeper.

  9. Back To Top    #9
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    Try (all width/length/depths in feet):

    (average width) * (average length) * (average depth) * 7.9 = gallons

    or

    (max width) * (max length) * (average depth) * 5.9 = gallons

    For an irregular pool both approaches are approximations but either will give you a good place to start from.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  10. Back To Top    #10

    Join Date
    Jun 2007
    Location
    Charleston, SC
    Posts
    33
    turns out my pool is ~ 7000 to 8000 gallons...

    http://www.sunpools.com/pool-styles/nassau.html

    Also, i finally did a test of the water with something besides a test strip. I used the Aqua Chem 6 way kit from walmart. Everything looked ok i guess, but the Stabilizer (is that CYA?) was off the charts! I don't have my results with me right now, but i believe it was something like 120-130. Is that bad?
    35+ year old 16 x 30 oval, depth 4 ft to 8 ft, in ground concrete pool approx 17,000 gallons-using BBB method

  11. Back To Top    #11
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    Test strips are not particuarly reliable. The best investment in your pool you can make is to get a good test kit, such as the TF Test Kit.

    Assuming your CYA level is really that high you will need to keep your FC level between 8 and 15 to keep your water safe.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  12. Back To Top    #12

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,398
    Quote Originally Posted by dolemite77
    Is that bad?
    Bad but manageable (barely) would be my reaction to that CYA number. Why don't you post up all your current numbers and you'll get lots of good advice on how to deal with your water.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  13. Back To Top    #13
    dolemite77
    7-8000 gallons seems like a small # to me. I have a 25K gallon pool. It has a deep end with a diving board and large shallow end. The shape had a name (i have forgotten) and i just called the manufacture or emailed them and they sent me the specs with the # of gallons. Try that because you need to get close to the right number so you can calculate the correct amount of chems to add when needed.

    The picture looks like a lot of manufactures "lagoon" shape. Hope you find it.
    Dwight
    24,500 vinyl pool, Intellichlor SWG,
    1-IntelliFlo 4x160 for pool & spa,
    1-4x160 for waterfall and Sheer decents,
    Triton II Sand filter, Easytouch control

Posting Permissions

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