This all looks right except on my kit it says to fill to 25ml line when testing alkalinity.
This all looks right except on my kit it says to fill to 25ml line when testing alkalinity.
Thanks no1ford. I was hoping someone would check me against the real instructions. My post was strictly from memory, which has a distinguished history of letting me down.
IG 30,000 gal vinyl
I also left out the hardness test. I haven't done that one yet, so it wasn't front of mind.
Hardness (Calcium) - Add pool water to the 25 mL level in the largest tube. Add 5 drops of the blue capped bottle marked "Hardness Indicator" and swirl to mix. It should turn red if there is any hardness. Then add the titrant (the other blue capped bottle) and swirl after each drop. When it turns blue, count the drops you used and multiply by 10 - this is your calcium reading.
IG 30,000 gal vinyl
I have this same test, but when i do the hardness test, I put 5 dropd in, and it turns yellow, not red. What does this mean? Does it matter considering that my pool is a vinyl liner?
I guess I should say it turns yellow like a urine color, not like the yellow for the chlorine test.
Guessing that it's bad chems, i have one of these kits from last year, and a new one. One does the same thing, and the other works right.Originally Posted by gordyjamz
gordyjamz: I also have encountered the "yellow" calcium hardness test. I do not know why it is sometimes yellow initially rather than red. A comment on another thread suggested minerals, but that was not verified by any other poster in that thread. My tests for calcium hardness ran red initially but, except for one intermediate day, have been yellow since. I still use the test and count drops (x10) until the color turns a light green, rather than blue. Seems to work just fine that way. The results correlate with the results achieved with Ben's testing kit, which I've recently received.
Sandy
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