Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 15 of 15

Thread: New Owner - Old Pool - Questions and Observations

  1. Back To Top    #1

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    New Owner - Old Pool - Questions and Observations

    Hi all,

    This is my first post here. I moved into a house less than a year ago and am now coming to grips with the pool.
    So far so good. Clear, fun, ignorant until I had water analyzed by pool store.
    I do have several inherited pool test kits including a larger one with something about Professional and 5 tests written on it.

    So test come back:
    FC - 0
    TAC - 0
    CH - 420
    CYA - 120
    TA - 110
    pH - 8.0
    Acid - 4
    TDS - 1100
    Pho - 200


    I then began reading and searching for understanding. Thanks to this site and others I now have charts and guidelines to work from.
    I ordered a pump and line as I realized I would need to remove at least a third of my water to bring things down.
    (I did one drain and refil to skimmer but had little impact.)
    While waiting and not knowing if I would have pump, etc by 4th holiday I dropped the PH to 7.6 and raised the FC to 14.
    So I should be sanitized at least until I can drain and refill.
    I have also bought boxes of 12% liquid chlorine realizing that I need to quit the easy tabs of Tri and Di stuff and only use it for maybe when I am away.

    Anything else to add to my plan? I assume draining and refilling will address a lot of my issues to get the CYA and Pho and Calc down.
    Then I will manage it better by using liquid Chlorine.

    I may consider SWG if it would make my life easier but have no idea which would be best to install.

    thanks all.
    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  2. Back To Top    #2
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    Location
    East Texas
    Posts
    9,002

    Re: New Owner - Old Pool - Questions and Observations

    Welcome to the forum. Stay on top of your FC per your cya level. Do you have the fas-dpd chlorine test as in one of the kits we recommend?
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  3. Back To Top    #3

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    Re: New Owner - Old Pool - Questions and Observations

    Have the Dpd test but not hte fas-dpd. Will check it out. yep I picked up on the chart and it looks like my FC should be 12-14 for the 120CYA.
    Question is...if I push off draining and refilling until after the 4th when company is coming to swim, will the higher level of chlorine - assuming I keep it at 13-14ppm be irritating to them when they swim or will the CYA control it?
    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  4. Back To Top    #4
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    Location
    East Texas
    Posts
    9,002

    Re: New Owner - Old Pool - Questions and Observations

    Should be just fine.

    - - - Updated - - -

    Just understand that is the absolute MINIMUM for your cya. I'd take it to 18 for a party easy.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  5. Back To Top    #5

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    Re: New Owner - Old Pool - Questions and Observations

    Quote Originally Posted by woodyp View Post
    Should be just fine.

    - - - Updated - - -

    Just understand that is the absolute MINIMUM for your cya. I'd take it to 18 for a party easy.
    Yep just checked since this morning and it has already started dropping. Will keep it high until I can drain and refill.
    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  6. Back To Top    #6

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    Re: New Owner - Old Pool - Questions and Observations

    Just measured and calculated....pool is 20000..will correct sig line.
    I dumped about 4500 gallons and refilled but ran out of stabilizer regent....New kit coming and I will see where I am on cya. Keeping FC up until then. Hopefully the cyan is down some. Now that I see my true volume I will probably have to dump more water.
    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  7. Back To Top    #7

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    Re: New Owner - Old Pool - Questions and Observations

    Just got the Taylor 2006 kit.
    Ph 7.5
    FC 12.5
    CYA over 100 even after replacing about 4500 gallons

    Question. In the chlorine test, after I finish step 4 and it says to add 5drops of R-0003 to make it turn pink again I get nothing. Do I continue to add drops until it is pink and then move on to CC test?

    Chlorine has been holding steady or at least not dropping much for the last few days and I have only added a partial...less than half a gallon of liquid 12 %chlorine. Maybe I should shock it to ensure CC is down.

    Thoughts?
    I really would rather wait for a couple of months before I replace another 4-5 thousand gallons...
    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  8. Back To Top    #8

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

    Re: New Owner - Old Pool - Questions and Observations

    Keep in mind CYA at or over 100 is not going to test properly. To get a ballpark figure, dilute the pool water with an equal amount of tap water. Run the CYA test again then double the result.
    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!

  9. Back To Top    #9

    Join Date
    Mar 2014
    Location
    Las Vegas
    Posts
    288

    Re: New Owner - Old Pool - Questions and Observations

    If it stays clear after adding the R0003 reagent, you have 0.0 CC. You can stop there.
    12000 Gallon IG Plaster built 2/15/2014. Jandy 340 sg ft 127 gpm filter, Jandy 1 HP stealth pump. Circupool RJ-45 SWG (overkill). TF-100 with Speed Stir.

  10. Back To Top    #10

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    Re: New Owner - Old Pool - Questions and Observations

    Thanks...With further reading I figured that out but glad to have the confirmation. I am now planning on removing another 5000 gallons...talking to water haulers and my MUD to see who is cheaper. We are on stage 2 drought here. Restrictions say I can still refill a pool just no new pool fills.

    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  11. Back To Top    #11

    Join Date
    Jun 2014
    Location
    Boca Raton, FL
    Posts
    101

    Re: New Owner - Old Pool - Questions and Observations

    I was where you are just a few weeks ago. I found that I couldn't keep my CYA-100+ pool clear. I did the drain and refill, got my CYA down to 50, and I was able to bring it under control. No more cloudiness. Stay on top of the FC while you work on the rest of the chemistry, and you will be in the clear.
    16x32 DiamondBrite kidney, 12,500 gal. (circa 1985) 3/4hp Hayward SII, Harmsco BF84, Taylor K-2006, Hayward SwimPure Plus / Tcell-15
    Boca Roton, Fl. USA.

    prior 17k gal. vinyl, Sand filter

  12. Back To Top    #12

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    Re: New Owner - Old Pool - Questions and Observations

    MUD says okay to refill existing pool. 5000 gallons will only cost me 14 extra dollars...what a deal.
    Tomorrow I will drain and refill and check CYA again.
    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  13. Back To Top    #13

    Join Date
    Jul 2012
    Location
    Dallas
    Posts
    43

    Re: New Owner - Old Pool - Questions and Observations

    Did you ever test (dilution method mentioned above) your CYA to get a closer reading? If it's over 100 you will save time, money and frustration by dumping more then 25% of your water. That would only take you to 75+% CYA and you would then need to dump again. I would get the correct number and dump close to the amount you need all at once or you will be adjusting your chemistry a lot more then necessary.
    26k gal, IG, Pebble Tec, DE filter/48sq'/144 GPM, 3hp Intelliflo running @ <1400 rpm 24/7

  14. Back To Top    #14

    Join Date
    Jul 2014
    Location
    Round Rock
    Posts
    19

    Re: New Owner - Old Pool - Questions and Observations

    Daltex....I did not get to that and I should have. But I went ahead and dumped about 12000 gallons out. Just finished filling up 2 hours ago and had the pump running for last 6 hours.
    Cya is still about 80 which tells me it was a lot higher than pool store said...I know I know....
    But for the 90-100 temps around here I think I will wait until later in August to replace any more.
    FC was 1
    Cc less than .5
    Cya70-80..took samples from diff areas...course now need more R0013
    Ph was 7.5
    Added a gallon of 12%chlorine and brought FC to 5. Added another half gallon and tonight I will bring it back to max for CYA level....kids coming over to swim so I need to wait
    Ph popped up to 7.6-7.7 so I added a little muriatic acid...used calculator for amounts and will check tonight.
    So while I am not completely happy with cya level I am in the right ballpark. And will see if I can manage with liquid chlorine for the next few weeks.
    I am hoping after a few more hours the cya may go a little more down after the pump has time to mix in more but that is prob wishful thinking. Took about 36 hours to refill pool. Low water pressure here...new pipes come in next year for the neighborhood and is expected to help things.

    This site has been a lifesaver for me. I haven't had any cloudiness or algae issues but suspect it was coming. At least now I understand why things are the way they are and how to correct them.
    We do have copper stains from an olde heater that is now disconnected but they don't bother us right now.
    location: Round Rock Texas
    20,000 in ground, plaster, 18 years old
    Sand filter
    Hayward pump - relatively new
    Disconnected old gas heater

  15. Back To Top    #15

    Join Date
    Jul 2012
    Location
    Dallas
    Posts
    43

    Re: New Owner - Old Pool - Questions and Observations

    At least @ 80 CYA you can manage it easier now. You will need to keep your FC between 6 & 11ppm according to pool math. I would try and keep it closer to the 11ppm due to the fact that you will have to bump it up to 31ppm if you need to SLAM it. It looks like one more 12000 gallon drain and fill might get you closer to 50 CYA. Also remember that the bleach will be more effective if you keep the pH on the low end. Sounds like you are on the right track.
    26k gal, IG, Pebble Tec, DE filter/48sq'/144 GPM, 3hp Intelliflo running @ <1400 rpm 24/7

Posting Permissions

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