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Thread: 3 more questions; 1 about PSI, 1 about estimated gallons and 1 about taylor FC test

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    3 more questions; 1 about PSI, 1 about estimated gallons and 1 about taylor FC test

    First I finally got my pressure gauge in the mail (the one on the multiport was broken) and hooked it up..it immediately jumped to 24 psi (and the needle kind of wiggles at that position).

    since i hadn't backwashed in a couple weeks i did a quick backwash and after done i was at 19 psi.

    is that normal? keep in mind before this i was flying BLIND in this regard. i looked again several hours later and it was still holding steady at 19 psi.

    --

    Second also measured my pool today, it appears to be roughly 33' by 15'. given that the corners are angles and the maximum depth is 6 feet, how many gallons do you estimate are in my pool?

    --

    Third, I have dumped a couple 121oz containers of bleach into the pool while I'm waiting on the TF-100 to arrive and when I did a chlorine test later, the color matched the top of the tester (7-10 i think?) but about 30-40 seconds later it was showing in the 5 range..then about 30 seconds after that in the 2-4 range.

    Do you have to read that test (the 5 drops of 001 and 5 drops of 002) immediately? or do you wait a few seconds and let the color fade?


    thanks!
    33x15' INGROUND pool roughly 14,800 gallons. liner, hayward multiport, sand filter (S-210S), pentair century 3/4hp pump (1081) & 320 automatic chlorinator. skimmer at one end of pool, 2 returns at the other.

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    Mod Squad pooldv's Avatar
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    Re: 3 more questions; 1 about PSI, 1 about estimated gallons and 1 about taylor FC te

    There is no normal pressure. Just whatever your pressure is after you clean the filter. Then clean it again when it rises 20-25%.

    Toward the bottom of Poolmath is a pool volume calculator. If your average depth is 4' then your pool is 13,400 gallons, 4.5' then 15k gallons.

    On the chlorine test they usually need to be read immediately. What test is it? The yellow FC and red PH? If yes, read immediately.
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    Re: 3 more questions; 1 about PSI, 1 about estimated gallons and 1 about taylor FC te

    thanks! i just found the pool math estimater. i think that's going to be fairly close..roughly 13-15k gallons.

    its actually a pink test; the lighter the shade the less FC. mine was definitely near the top..i think i'm approaching SLAM/shock levels (dumped in 2 121oz containers of bleach yesterday and today) but i wont know for sure what i'm doing until the test arrives.
    33x15' INGROUND pool roughly 14,800 gallons. liner, hayward multiport, sand filter (S-210S), pentair century 3/4hp pump (1081) & 320 automatic chlorinator. skimmer at one end of pool, 2 returns at the other.

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    Mod Squad jblizzle's Avatar
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    Re: 3 more questions; 1 about PSI, 1 about estimated gallons and 1 about taylor FC te

    The pink chlorine tests tend to fade out at higher chlorine levels ... so they are not very good at estimating the FC level. The yellow OTO chlorine test are a little better as they do not fade out, just change color at higher FC levels.
    Jason, TFP Moderator
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