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Thread: Testing isn't easy

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    Join Date
    Aug 2010
    Location
    Orlando, Florida
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    Testing isn't easy

    I got my Taylor k-2006 test kit yesterday. I've been fighting with algae since we bought the house in December. It's mostly clear now--until I brush the sides and bottom and then it's cloudy (but as of yesterday, still clear enough to see the main drain even after brushing, which is promising).

    First test results:
    Cya: 40 (last week the pool store said it was 140 and the week before they said it was 100, so I drained a couple of feet of water to bring it down. I stopped using the pucks 1 1/2 weeks ago).
    Ph: 7.5
    Ta: 100-110
    CH: 370ish (I was previously using cal-hypo, but have been using 6% bleach for 1 1/2 weeks.¬*I have not tested my tap water, but I'm assuming it's got some calcium in it)
    FC: 10
    ¬*
    So, I added 196 oz of 6% bleach to get to shock level of 15.5 FC.¬* I vacuumed (actually ended up adding some water from the leaf bagger) and scrubbed the sides and floor.¬* I tested again after an hour (re-tested the CYA and got similar results--40) and the FC was 17, which is higher than it should have been based on my calculations.¬* That was at sunset while it was overcast.
    ¬*
    This morning before the sun was up (also overcast) I tested and got 18 FC (36 drops).¬* I thought I must have done it wrong, so I re-did it at the other level.¬* I got to 90 drops and assumed that I had messed it up because it started to look clear (I don't remember when it became clear-ish) but it never looked "colorless," it was still tinged pink.¬*¬*So I started over.¬* The third time, I got to 85 drops and it was STILL pink tinged.¬* I gave up because I was now late for work and it's really a moot point if it's higher the next day.
    ¬*
    I'm not sure what I'm doing wrong, any ideas?
    Also, why would the FC be HIGHER than anticipated?¬* Is it likely that I've incorrectly estimated my volume?
    ¬*
    I just want to go swimming in my pool
    17,000 gal, Posi-Flo Sta-Rite cartridge filter, IG, pebble, Water Ace (GE) 1 HP/1.25 SF 115/230V, 100 GPM (Resid.)/37.5 GPM (public pool), 102 SQ FT filter. Future upgrade: 250 SqFt filter.

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    Mod Squad JohnT's Avatar
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    Re: Testing isn't easy

    Quote Originally Posted by HeritageCove
    Also, why would the FC be HIGHER than anticipated?¬* Is it likely that I've incorrectly estimated my volume?
    ¬*
    Most likely. Free-formed pools are always just a guess on volume unless you take a lot of depth measurements. What are the dimensions and shape of your pool?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Join Date
    Aug 2010
    Location
    Orlando, Florida
    Posts
    41

    Re: Testing isn't easy

    It's like a kidney shape, but with a corner in the shallow end. I will post dimensions later today. I know that it's about 3.5 ft deep-7.5 deep.

    Does it sound like I over- or under-estimated originally?
    17,000 gal, Posi-Flo Sta-Rite cartridge filter, IG, pebble, Water Ace (GE) 1 HP/1.25 SF 115/230V, 100 GPM (Resid.)/37.5 GPM (public pool), 102 SQ FT filter. Future upgrade: 250 SqFt filter.

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    Join Date
    Mar 2010
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    Spring, TX
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    Re: Testing isn't easy

    I guess a way to tell is it if you are trying to hit a certain number and you go under then you have over estimated your size. If you go way over the number you have under estimated your size.

    I belive this is correct.
    13,000 Plaster IG Pool approx
    Hayward C5030 Cart Filter
    Emerson 1081 EB653 1.0 HP 1.40 S.F. 3450 RPM
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