Recent content by Ronald U.

  1. Ronald U.

    pH: How high is too high?

    OK. Scale formation: if my CSI is OK? / Skin: not currently swim season. / Seems there is some difference of opinion on HOCL/OCL significance. What else? Thanks to all for chiming in.
  2. Ronald U.

    pH: How high is too high?

    Thank you all. The CSI is nominal, the salt is just accumulated over the years, and, you're right: I should either buy a pH meter or just add some acid! BTW, what exactly is bad about having a pool pH in the 8s? Ron
  3. Ronald U.

    pH: How high is too high?

    Greetings. I've asked this years back, but now I'm into uncharted high pH territory and I want some opinions. As you'll see, my CSI is fine. And I figure, if I don't have to go out in the cold and add acid, I won't. I'm lazy. Thanks. pH 8.5 (approx. as 8.2 is top of the color scale) FC 5.5 TA...
  4. Ronald U.

    Big time daily chlorine loss

    Thank you all. You are correct. My CYA is below 30, above 20! Adding now. Sometimes it seems I have to pose the question before I can do what is really needed to solve it. Regards,
  5. Ronald U.

    Big time daily chlorine loss

    Today: FC 0.5 CC 0.5 pH 8.0 CYA 40 (last checked 3 weeks ago) TA 110 CH 175 Salt 2400 (last checked 6 months ago) Borate 40 (last checked 6 months ago) I use the TFTest kit.
  6. Ronald U.

    Big time daily chlorine loss

    Greetings. I have always noticed a large daily drop in FC during the summer. Up to 5 points is not uncommon for my pool. However, it seems to be even more lately. I target FC at 7.0 every morning. This morning's reading, pre-chlorine addition, was 0.5 points. 6.5 point loss during the day? Wow...
  7. Ronald U.

    Has "old" Pool Math web page been replaced?

    Cool. Thanks for all you do.
  8. Ronald U.

    Has "old" Pool Math web page been replaced?

    Thanks. I guess I can just keep in mind some of the target ranges that seem to have been re-jiggered. The basic chemistry calculations remain the same.
  9. Ronald U.

    Has "old" Pool Math web page been replaced?

    Is the web based Pool Math still OK to use?
  10. Ronald U.

    Has "old" Pool Math web page been replaced?

    Hi. I don't have a smartphone and use my Apple desktop and laptop to run Pool Math web page. Is this still current? I'm seeing info. about an app with updated suggested chemical levels. Thanks.
  11. Ronald U.

    First FAS-DPD chlorine often way too low

    Yes. / I just had a thought. Maybe letting the first drop of R-0871 go to waste? Perhaps it concentrates in the tip while stored overnight?
  12. Ronald U.

    First FAS-DPD chlorine often way too low

    A puzzler: My first attempt at FAS-DPD often gives me a ludicrously low FC. Then I wash and refill minutes later and voila! I get "the result I want". Same water, everything. Example: today's first FC was 2.5, CC 1.5. Then FC 4.5, CC 0.5, then FC 4.0, CC 0.5. This happens 50% of the time. Anyone...
  13. Ronald U.

    pH: how high is too high?

    CSI according to Poolmath is 0.19. Scale will not occur, but does pH 8.3 begin to have a degrading effect on pool plumbing, pump interiors, etc.? Perhaps I should add that no one is swimming in this pool until spring returns.
  14. Ronald U.

    pH: how high is too high?

    Greetings, fellow travelers and pool owners. So my CSI is still fine with pH 8.3. But how high is too high as regards pH's effect on the pool's infrastructure? Thank you. Today's readings: FC 5.5 TA 100 CH 200 CYA 30 Temp 62 Salt (from 9/19) 2400 Borate (from 9/19) 40