Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: Recommended levels

  1. Back To Top    #1

    Join Date
    May 2015
    Location
    Novi MI
    Posts
    61

    Recommended levels

    When I look at the recommended levels for Vinyl pool (Pool School - Recommended Levels). Below is what I get but when I go to the poolmath calculator it's slightly different. So Can someone tell me the ideal numbers?

    For FC it seems straight forward. If CYA is 30 ideal is 4ppm (Pool School - Chlorine / CYA Chart). But for the others there doesn't seem to be an ideal? In other words should ph be 7.2 ideally or 7.5, etc. Thank you!

    Vinyl with Bleach
    FC 3-7 (See chart)
    pH 7.5-7.8
    TA 50-90+
    CH 0-350 (Don't add)
    CYA 30-50
    26,700 gal (rectangular 18" x 36', CES 3'10" x 4'), IG, Vinyl, Hayward Super pump 1.5HP, sand filter-Hayward S244T, built roughly 5yrs ago I think, 1 1/2" pipe, TF-100, Well and city water available.

  2. Back To Top    #2
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,966

    Re: Recommended levels

    They should match, but one thing you have to make sure you do is at the bottom of the calculator, make sure to update the 3 items in the "Suggested Goals Levels" row. That changes those recommended numbers on the calculator. Maybe that's why you are seeing a disparity.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  3. Back To Top    #3
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,998

    Re: Recommended levels

    There is not really an ideal. Any of those are fine and will work fine. As you manage your pool you will notice trends like you spend a lot of time trying to keep PH at 7.8 but it is always 7.5 every time you test it. Leave it at 7.5. Or it is always 7.8 and you keep lowering it to 7.6. Leave it at 7.8. Or your TA keeps creeping down to 60 and you keep raising it to 80. Leave it at 60. There is no reason to spend time and money chasing a number. Except for never letting your FC drop below minimum for your CYA. Everything else just needs to be in range.

    CYA is more dependent on sun exposure and climate. You are probably fine with 30. If you would like to use a little less chlorine per day then maybe 40.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  4. Back To Top    #4

    Join Date
    May 2015
    Location
    Novi MI
    Posts
    61

    Re: Recommended levels

    I did pick Traditional pool, Vinyl, and Bleach and there is a disparity.
    26,700 gal (rectangular 18" x 36', CES 3'10" x 4'), IG, Vinyl, Hayward Super pump 1.5HP, sand filter-Hayward S244T, built roughly 5yrs ago I think, 1 1/2" pipe, TF-100, Well and city water available.

  5. Back To Top    #5
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,966

    Re: Recommended levels

    You have to pick "Troublefreepool" and the numbers should match.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  6. Back To Top    #6

    Join Date
    May 2015
    Location
    Novi MI
    Posts
    61

    Re: Recommended levels

    pooldv- When I read about ph some say 7.2 and others say 7.5 - 7.8. But what I'm trying to figure out to have less algae issue should it be 7.2 or closer to 7.8? Also will either be ok for kids?
    26,700 gal (rectangular 18" x 36', CES 3'10" x 4'), IG, Vinyl, Hayward Super pump 1.5HP, sand filter-Hayward S244T, built roughly 5yrs ago I think, 1 1/2" pipe, TF-100, Well and city water available.

  7. Back To Top    #7

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Recommended levels

    pH does not affect algae growth. Anywhere within 7.0-8.0 is fine to swim in, although I prefer around 7.6. But don't use 7.6 as your target, anywhere from 7.2 to 7.8 is fine for your pool and kids.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  8. Back To Top    #8

    Join Date
    May 2015
    Location
    Novi MI
    Posts
    61

    Re: Recommended levels

    Texas- Thanks. That worked! But it still doesn't answer my question about ideal. Or am I stressing too much over nothing?
    26,700 gal (rectangular 18" x 36', CES 3'10" x 4'), IG, Vinyl, Hayward Super pump 1.5HP, sand filter-Hayward S244T, built roughly 5yrs ago I think, 1 1/2" pipe, TF-100, Well and city water available.

  9. Back To Top    #9
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,966

    Re: Recommended levels

    No worries, we ALL get OCD about our pools. It all comes down to your pool and works best. For example, some pools may have a low CH because of very soft water, so to compensate the owner needs to elevate TA and pH to maintain a healthy CSI for plaster. Or in places like AZ it could be the other ay around with extremely hard water. TFP recommends CYA of 30-50 for non-SWG pools, but I keep mine at 60, sometimes 70 in the peak summer months because the sun's UV is brutal where I live. So there is a bit of variance on some things based on what your pool needs. A lot of time was invested by our predecessors who developed those numbers based on the various types of pools and most common conditions in the country. In the end, if you ever get stuck on one item, just let us know. We'll be happy to confuse you even more.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  10. Back To Top    #10
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,998

    Re: Recommended levels

    We never get tired of talking about PH, TA and CSI.

    It is 100% safe to swim when
    Your chlorine level is above minimum and below shock level for your CYA, Chlorine CYA Chart
    PH is 7.2 to 7.8
    Water is clear

    If you want to obsess about your kids being safe then you can obsess about making absolutely sure that your chlorine level never drops below minimum level for your CYA, Chlorine CYA Chart. If it does drop below minimum then the pool becomes unsanitary with increased risk of person to person disease transmission and ineffective killing of bacteria, viruses and other pathogens.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

Posting Permissions

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