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According to the CYA chart http://www.troublefreepool.com/threads/2177-Chlorine-CYA-Chart your target FC should be 5.7 with a min of 3.7. As I've read FC loss to sunlight is a consistent percentage not a certain quantity. So, overshooting your target would result in more FC loss to sunlight. I'm...

0.1891 grams of CYA needed per gal of distilled water to get 50 ppm. Per: http://www.onlineconversion.com/weight_all.htm, 1 grain = 0.06479891 grams 0.1891 grams / 0.06479891 = 2.918258964541225 grains Most of the reloading scales I've seen online are claim accuracy within 0.1 grains. So in...

birkesl, tri-chlor adds CYA and chlorine. Since the only way to remove CYA is to replace water, you need to stop using tri-chlor pucks/powder because your CYA levels are already too high. Given this very high level you'll have to use crazy amounts of liquid chlorine (bleach) to keep your pool...

Brilliant idea. I don't reload. I've been looking into it as I can't get ammo in my neck of the woods. I've had some on backorder for months now. I'll have to ask my friends who reload if they could hit that specific of a mark. Thanks for the idea!

Iron from well water made my brand new pool green when I initially filled it. It was clear as in you could see the bottom clearly but tinted green. You could have iron making the water green and algae causing the cloudiness. Chlorine will kill the algae but you'll need to vac/filter to remove it...

I think I found it per this site: http://www.unitconversion.org/concentra ... rsion.html Based on 1 gallon = 3.78541 Liters 0.1891 grams per 3.78541 Liter = 50.012022343 ppm That should be close enough for government work. Now, how to measure .1891 grams of granulated CYA?

Could someone make their own 50ppm test with distilled water and CYA granules so we could verify our testing methods? I know it's sold for $8.50, but many of us here have CYA and distilled water on hand. Even if we had to add 1/8 teaspoon to a 5 gal bucket, then use a dropper for the test, it...

"Pool Pal" is a free droid app that has TFP recommendations in the description, and some references in the settings. I just got it today. Looks cool and tracks changes per pool, and you can add multiple pools.

I realize the OP found his but for anyone who has lost theirs, maybe a coffee stir/straw cut as mentioned above would give a strong yet small scoop for a substitute.

I did a little Pool School reading. Since my pool is vynl perhaps I don't need to worry about adding calcium via Calcium Chloride. So, which order to move forward in? I was thinking: 1. Add 48 oz MA to bring pH back to proper levels (targeting the low end given my iron issues) 2. Wait 30-60...

P.S. sorry for the poor lighting in the pictures. I can only get them in low light before work or after, unless it's on the weekend.

Update: Here's a new pic of my pool's much improved color: Since the last pic I've added another 16 ouces of Jack's Magic Pink Stuff in two separate 8 oz pours. I've seen a lot of yellowish-orange pigment on the filter cartridge that seems to wash off easily like a fine powder. There also...

Anyone?

Adding the remaining pink stuff seems to have improved the clarity even more but it's not quite clear yet. I think I've still got a bit of iron left. I'm sure adding more sequestrant will help, when my resupply arrives. However, my question of when to chlorinate remains. Do I need to wait until...

I've read a ton before posting but I don't have a proper test kit yet. I've been using some HTH 6-way test strips. I know they are innacurate and I just ordered my TF100 kit. I recently had the valve on my easy-set inflatable ring pool. It was 12' x 36" and wouldn't hold air due to a crack in...