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Thread: Major revision to Pool Calculator

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    JasonLion's Avatar
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    Major revision to Pool Calculator

    For the next few days I am beta testing a major revision to my Pool Calculator. You can access the beta test version at Pool Calculator.

    There are two major new features. It now calculates calcite saturation, for estimating the risk of paster corrosion or calcite scaling, and recommends target FC levels (including for SWGs). There are also some changes to the layout and minor improvements to the pool volume calculation.

    This is a beta test version, as such not everything may work correctly and amounts of chemicals or other calculations might be wrong. Because of that I am leaving the old version up at the normal URL for the next few days. When this version has gotten more testing I will replace the previous version with the new one at the normal URL.

    I welcome any testing, feedback, or comments you may have!

    Thanks
    Jason
    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

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    duraleigh's Avatar
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    Jason,

    Very nice improvement. The calculators are much easier to read and use. Thanks for sharing all the hard work you put into it.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    Oh very nice! I especially like the inclusion of the CYA/FC calculator, and the second "show details" field.
    Much nicer layout, too!
    Thanks for all the hard work!

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

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    It's much more pleasing to the eye. Great job, Jason.
    Buggs

    14,000 gallon, in ground, plaster, free form, play pool.
    Sta-Rite Max-E-Glass with a 1.5 hp Emerson motor
    WaterCo Micron High Rate sand filter S750 490 lb, 4883 sq ft - using ZeoBest
    In floor Polaris cleaning system
    Blue Diamond robot for those after storm days when I can't wait overnight for the in floor to clean it.

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    AnnaK's Avatar
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    This is great, Jason! It's my favourite resource and you've made it even better. Thank you!

    Annka
    — AnnaK —

    12,000 gal AGP, Hayward sand filter, Pentair 2-speed pump, timer.
    Please visit our Pool Issues pages for information about step weights, managing the solar cover, and PoolSkim.

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    SeanB's Avatar
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    Well done!
    TFP Founder

    My Pool: 13K gal IG gunite with 7' spa, Pentair Cartridge Filter, Intellichlor IC40 SWG, Polaris 280 Cleaner, TF-100 Test Kit w/ salt test.

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    This is great! Two suggestions. One is some background color coding. By coloring each section in its own color, it will make distinguishing them easy -- at a minimum, alternating between two colors (or shades) will make things easier to read. The other suggestion is to change the "Max" recommended FC to "Tgt" for target or change the calculation to have it be the Max -- as it is now, it doesn't match Ben's table and seems closer to my target column which is not a maximum (I don't really have a maximum).
    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"

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    thanks man. your orig. pool calc has been invaluable for helping me with the starting of my pool, especially with my ignorance in chemicals and amounts.

    Thanks bro.
    My Pool - 18x24 fully setup Cabana, 22x48 gunite/quartz plaster (3-5-3 depth) & 8' spa w/ spill and 5' natural rock waterfall; Hayward DE filter/pumps/heater; Hayward Pro Logic controller; Phantom cleaner. Finished 06/01/07.

    RedishConstruction.com

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    JasonLion's Avatar
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    Thanks for the thanks. You are all welcome!

    I have a new revision today. I added background colors and bleach in jugs. I also raised the max FC suggestions slightly.

    Still in beta at http://www.poolcalculator.com/beta.html.

    Does anyone have an opinion about which words are better to use, Ben's min/max FC recommendations vs. chem geek's min/target approach? I believe that telling people to keep chlorine between the min and max goes over more easily than explaining what min/target mean. Yet use of the term max can be misleading as there isn't really a maximum (well there is but it is way higher than the max column). Meanwhile, there isn't really one target level, people with recurring mustard or black algae will often want to set a higher target than other people will. It is more a question of picking a personal target somewhere within the recommended range. Perhaps "Target range 3 to 6" instead of "Min 3 Max 6"? Still, I like the word min. Go below the min and you should expect problems. There are too many ways to do it, I can't decide. Opinions?
    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
    very nice...

    thanks for all your hard work!!
    14 x 32 x 6 (ave depth) 20K gallons - IG gunite pool. Challenger 1.5 hp pump and cartridge filter.

  11. Back To Top    #11

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    Jason, in the old BleachCalc program, if I add the number of ounces of Borax your Pool Calculator gives me (412 oz to raise borates from 0 to 50 in a 7,000 gallon pool), it shows the ppm would be 180 for borates if I added that much. Is Bleachcalc wrong? Almost 26 pounds of Borax seems like a lot for a small pool to go from 0 to 50ppm
    7000 gallon IG freeform w/ 6 ft. spa, 21 ft weeping wall, Hayward SP4020NS Northstar pump, Colorlogic LED’s, DE6020 filter and H400IDL2 400,000btu heater. Aqua logic 8 zone controller with Aqua Rite salt chlorine generator, Stonescapes pebble finish – Aqua Blue and flagstone coping, stamped/stained concrete deck

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    BleachCalc is wrong with the Borates. The measurement of Borates on test strips is in "ppm Boron" whereas the actual chemical that ends up in the water is Boric Acid that is considerably heavier (per molecule) so the 50 ppm Boron is about 300 ppm Boric Acid so is comparable in quantity (weight) to items like calcium chloride and sodium bicarbonate (baking soda) that are initially added to a pool. Also, 20 Mule Team Borax is sodium tetraborate decahydrate so is 47% water (as a hydrated crystal) by weight which is also why you have to add so much.

    waterbear (Evan) also verified that BleachCalc is wrong for the Borates as have other users that have since added Borates to their pool.

    So yes, the 412 ounces weight (25-3/4 pounds) to raise the Borates from 0 to 50 ppm in a 7000 gallon pool is correct.

    Richard
    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"

  13. Back To Top    #13

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    Thanks Richard. I have the Aquachek Borate testing strips so I want to be between 30 and 50 on the color comparison chart?
    7000 gallon IG freeform w/ 6 ft. spa, 21 ft weeping wall, Hayward SP4020NS Northstar pump, Colorlogic LED’s, DE6020 filter and H400IDL2 400,000btu heater. Aqua logic 8 zone controller with Aqua Rite salt chlorine generator, Stonescapes pebble finish – Aqua Blue and flagstone coping, stamped/stained concrete deck

  14. Back To Top    #14

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    Yes. So to play it safe, you can add half as much as recommended and see what shows up in the strips, then add more. I also assume you know about teaching pets (e.g. dogs) not to drink from the pool. The Borates may be unhealthful if they drink a quart or so every day (possibly as little as a cup, but based on the data I saw I think a quart per day is closer to the first symptoms amount).
    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"

  15. Back To Top    #15

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    I did read about pets shouldn't be drinking the water. Just a cat here so not too much an issue. Birds sure like to drink though!
    7000 gallon IG freeform w/ 6 ft. spa, 21 ft weeping wall, Hayward SP4020NS Northstar pump, Colorlogic LED’s, DE6020 filter and H400IDL2 400,000btu heater. Aqua logic 8 zone controller with Aqua Rite salt chlorine generator, Stonescapes pebble finish – Aqua Blue and flagstone coping, stamped/stained concrete deck

  16. Back To Top    #16

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    Looks great, it is such a help, thanks so much!
    18 ft.52" Round Atrium AG -7600 gallons, Sand Filter, Vinyl liner, Royal Entrance Steps, 80 lbs.solarsalt

  17. Back To Top    #17
    regarding the min/max FC issue, how about keeping the min column, but have the other say target range? so for example, with 0 CYA, the min column would read 1, and the next column, labeled Target Range, would say 1-3. the shock and mustard columns could remain the same.

    very colorful!!

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

  18. Back To Top    #18

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    SPLENDISIMO !!

    So, when does the hand-held version come out????

    The Pocket Pool Calculator???
    20x40 30,000 gal IG Liner, Pentair II Sand

  19. Back To Top    #19
    JasonLion's Avatar
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    The beta period is now complete. The new version is now generally available and I got it it's own domain name: www.poolcalculator.com! The old URL will redirect to the new location, but if you have any bookmarks or links to the old location you might want to update them.

    Thanks to everyone for the wonderful feedback. I tried to incorporate as many of your suggestions as I could. I plan to continue working on it when I can, so keep the comments comming
    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

  20. Back To Top    #20
    Jason, need some help. I'm obviously doing something wrong.

    I pulled up the calculator using your last link. Changed the default to my pool gallon size. Changed the FC Now default to my last test. I assume because there was a default set in the goal column, the calculator automatically calculated for that change. However, it wasn't the change I wanted. I changed the goal, but it won't recalculate. So, I cleared out the defaults in both now and goal, added now, then input goal, still no calculation.

    Perhaps it'd be better not to have any defaults in the goal column? Or am I missing something?

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