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Just ran the test again.

Im in the same situation… does TA not really matter with vinyl pools? PH 7.4 TA 220

Appears that my TA is high, but my PH is somewhat in range. Pool maths is suggesting I add 2gal if Mauriatic acid. Sounds like a ton! PH 7.2 TA 230 Will TA drop on its own?

I used ones from a local (Menards) hardware store. It’s labeled pool shock and noted 12.5%

No cal product ever added. But did register 450 two days ago.

2days ago the cal measured 450. Would you still recommend raising it?

Just test this morning Fc 9ppm CYA 70 CC 0.5 pH 7.4

Just liquid chlorine.

What’s causing this? Happens when I add water or when we slash around. They fade away slowly. But curious on the cause and maybe how to address it.

How long would you say it takes for chlorine to mix? For example- force a break, add some chlorine… for long till the swimmers can get back in?

Whoa didn’t know those were all possibilities. We are planning on having quite a bit of swimmers next week and I just want to stay ahead of the game. But sounds like to me I should be okay with liquid chlorine and maintain FC:CYA table. Because of the heavy activity I would want to check daily...

Those one lbs granular bags…? Am I using the wrong terminology

Anyone order their shock off Amazon? I wanted to order a few lbs to keep on hand.

Oh snap I think I have my numbers dialed in but maybe not TA. Test kit K2006 FC 9 CC 0.5 TA 60 CH 450 PH 7.4 CYA 60

So I took a water sample last night at 9:26pm and had FC 12.5 CC .5 CYA 80 Took a sample this morning at 5:38am FC 8.5 CC 0 CYA 70 I do have this logged if anyone wanted to take a peek. We did take a dip in the pool from 4-6pm Wondering why my FC dropped so much..?

I’m leaning towards liquid… I know there was a tablet shortage last year, was it the same with liquid chlorine as well?

Read that If I went on vacation for a few days or so I can bring my chlorine levels up SLAM levels (based on CYA) and should be fine for a few days. But tablets seem like it’s more work then reward.

First off thanks to TFP has been such a great platform and teacher. Thanks to everyone who has helped me learn a ton the last week or two. With that said I can’t stop thinking pool chemistry… it’s all new to me :) I have two brand new 40lbs 3” tablets I bough a few weeks ago for the season. As...

We’re about to get some rain… thought on letting rain water in or should I cover the pool?

According to the CYA chart I need to be at 80ppm for CYA to maintain/target FC at 9-11ppm, with a minimum of FC @ 5ppm. So technically I’m there now right?

Just to confirm… we are good to get in with FC level from 6-31ppm with a CYA of 80? Sorry nervous about hurting the kids with such a high FC level of 21.5 ppm.

Learning the hard way. Lol. That’s what I get for making an emotional decision

I have a vinyl pool and scared to drain to much at one time. Is there a recommendation on how much I can drain without messing anything up? If I have to drain and refill, I don’t have any issues doing that at all. Or should I just let it be, and keep my FC according to the CYA “liquid chlorine”...

I was frustrated with the cloudy water so I dump a ton of liquid chlorine. Two days ago it was at 35ppm. So it’s drop quite a bit from UV, vacuuming and backwashing.

Does this mean I need to increase my FC to 31ppm since my current CYA is 80ppm?

My understanding is CYA will not drop on its own and the only way to lower it is to drain and replace water.

Long story short my numbers are below via K2006 FC 21.5 (good news no drop on OCLT) CYA 80 TA 250 PH 7.4 Thinking ahead, I use 3inch chlorine tablets and have two 40lbs cases of them. What I have read are the tablets let’s out CYA as well. With my current CYA at 80 I’m assuming once my FC...

Safe numbers to get in yet…? FC 23 CC 0.5 CYA 80 PH 7.4 TA 250 Thanks