Recent content by bostonpool

  1. B

    What chemistry before closing inground pool

    Love the SWG! Granted this is my first pool and we added the SWG, so I have nothing else to reference. My Apollo is great. Only small issues like it tends to corrode a bit with the salt. Thanks for the tips. Note I assume I have Borates of 15 and that changes some of the pool math...
  2. B

    What chemistry before closing inground pool

    Hi folks: Well my 32,000 gallon Gunite pool is closing tomorrow. Pool store coming out to help (I still am hesitant to do it myself.) I've tried to follow the advice on here on what to do pre closing. My question is around CSI. The info on this site says I should have PH between 7.4 -...
  3. B

    Question on CYA and CC

    Hey folks: I'm in my 3rd year with my 40+ year old Gunite Pool and using the TFP Method. Thanks for all the help thus far! Overall, my water is great and pretty balanced, all things considered. I've noticed a couple of things when I test recently that I'm hoping you can help me understand...
  4. B

    If all values are in range, why is CSI in the "Corrosive" region?

    Thanks. Right now my PH is 7.4 after adding acid. So I'm at a CSI of -0.62 It will be a while before PH rises again, but CSI should drop as my pool heats up (just turned the heater on.) Do you think it's more important to keep all chemistry values in the target ranges, or is it better to...
  5. B

    Poolmath: Different Results in App vs Web

    That did it. I don't typically track borates. But I had 15 loaded in on the web page. And zero on the app. Changing the app to 15 made them match. Many thanks!
  6. B

    If all values are in range, why is CSI in the "Corrosive" region?

    Hi folks: I usually try to get my 32,000 gunite pool dialed in right on the recommended values for FC, PH, CH, TA, CYA, etc. I usually keep salt 3000-3200. Basically I try to follow all of the recommendations here: Water Balance for SWGs - Trouble Free Pool So my question is, if I get...
  7. B

    Poolmath: Different Results in App vs Web

    TA is 70 on both web and app. I like the idea of the app, but until the results are the same I won't be using it.
  8. B

    Poolmath: Different Results in App vs Web

    Hi Folks: I've got a 32,000 gallon gunite pool. Just tried using the new Poolmath App and was surprised to see the amount of acid it is recommending that I add is vastly different than what the web says. I've always used the Website and have been pleased. My PH is current 8.4 (just opened...
  9. B

    How to seal / patch cracks in pool deck

    Hi folks: I've got a 40 year old pool. There are a handful of cracks in the pool deck. Some have been there for a while. I see the previous owner of our house patched them with some caulking. Can anyone recommend a good product to caulk / patch cracks in the pool deck? I don't want water...
  10. B

    Antifreeze for skimmer basket?

    Hello: I just closed my pool for the second time ever (or rather I had my pool store close it.) It rained a lot the week after closing and now I see there is 1-2" of water in my skimmer basket. I worry this will freeze. Do I have to put anti-freeze in the skimmer? If so, is there a product...
  11. B

    CSI when Closing?

    Yes...I haven't measured CYA in a while. I think its likely in the 50-60 range for a gunite pool with SWG. 32,000 gallons
  12. B

    CSI when Closing?

    Hi folks: Pool is closing today and I've followed the instructions in the "How To" section. I did a final test this AM. My results are: FC=17 (drifting down from SLAMing 2 days ago) PH = 7.8 CH = 400 TA = 70-75 Borates = 15? (I checked in June and haven't added any) Salt = 3000 Temp = 65...
  13. B

    How critical is CSI for an old Gunite pool?

    zero that I can see. But I haven't really checked. Putting the values in today it seems poolmath shows me at -0.41 Still too high but better. Will increase TA tomorrow and that will get it down.
  14. B

    How critical is CSI for an old Gunite pool?

    Thanks all. I haven't measure CYA in a while. It was a tad low (60-70) when last I read it in July. All I know is my FC is holding (although also high). Is there a reason I should raise CYA if my FC is holding? I suppose one reason is I could potentially back down on my SWG which right now...
  15. B

    How critical is CSI for an old Gunite pool?

    Hi folks: Just wrapping up our second season with the pool in our new home. Its a 40 year old Gunite pool. Overall, this year has been relatively easy. My FC, PH, CH, and TA have been pretty much in range all season with just a few minor corrections here and there. I did a full test of the...