Recent content by Craig Mossman

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    Hard water with high Calcium

    Since refilling the pool 6 days ago, I have put in a total of 8 litres of Hydrachloric acid. 4 litres on initial fill (TA 160 pH 8.5 the next day) & 1 litre per day (except one). On the 2nd day TA was down to 130 pH 7.5. The TA & pH have remained the same each day and today despite the 1 litre...
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    Hard water with high Calcium

    Thanks for the good info. Will add acid and keep vacuuming. Can these test kits be purchased thru TFP?
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    Hard water with high Calcium

    Pool test: TA 160, pH 8.2 (top of test kit scale), FC 5 (top of test kit scale). The 4 in 1 test kit I have doesn't do cya test, but a test strip shows 30-50. The pool has an ionizer system. Copper level 0.5ppm. The water was quite cloudy yesterday but is clearing today.The drain is now visible...
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    Hard water with high Calcium

    Thanks for the replies. I will get a pool test done in the next hour or so and post it. Yes, pool size is 12,000 U.S gals. I scrubbed the pool floor with a Hydrochloric/water mix. 5:1 and had to really scrub hard to get the staining off. Small amounts of water was run into the pool floor and...
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    Hard water with high Calcium

    I have a problem with a pool situated in the Cook Islands in the South Pacific. The water here is VERY hard and reading the information here on TFP am aiming for a TA of 100 and pH of 7.5. There is a blocker in the pool to keep the CYA levels up and the FC is over 5. Before achieving these...