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Yeah. I am losing less than 1 PPM overnight.. Only thing I can think of is that the chlorine may have loss some of it's potency? The date is from March 2021, so maybe it's not 10% anymore??

Hi All, Quick question for you guys. Opened my pool about three weeks ago and everything seems to be in range; below are my tests from yesterday: PH: 7.4 CH: 200 TA: 90 CYA: 60 FC: 8 CC: 0 I am having to use 128 oz (1 bottle of 10%) daily to keep the chlorine in range.. Does that seem like a...

Thanks! Lowered to 7.2 and then added some chlorine to bring it back to 12 PPM. It’s pretty close, probably one more day of SLAM.

Guess I missed that part. Should I throw some acid in there now to lower to 7.2?

I tested PH before I raised FC.

Opened pool yesterday. Tested chemicals several times today and yesterday. FC: 13.5 CC: 0 PH: 7.6 CYA: 30 CH: 210 TA: 100 No debris left in pool, just water look dull.. should I try to lower TA a little? Could that cause the dullness?

I had a similar issue when I used my inline Pentair chlorinator. I left the top off of the chlorinator and turned the pump on; once the water reached the top of the chlorinator, I screwed the top back on.. Wouldn't recommend using the chlorinator, but that's how I got mine to work when I used it.

After you mentioned that, I realize that you have to enter your TA.. Seems to be functioning properly now.. My bad!!

Hi All, Quick question. When looking at the PH section with a current PH of 7.8 and a target PH of 7.2 using 31.45% MA it suggest I use 8.2 oz to lower to my target level.... When going into the effects of adding 31.45% MA it says that adding 8 oz will lower PH by .1... Any idea why there are...

I picked up 10 cases yesterday, as I have to use 1 gallon of 12.5% daily (Date was June 5, 2019) to keep my pool at the proper levels.. Hoping they run another special around Labor Day; so I can finish out the season. I store in my basement so it stays pretty fresh.

I have a fiberglass pool and if I rub the walls I get a white chalky substance that comes off; is that what you are seeing? My chemistry is perfect; so I have pretty much just ignored it.

I have a CYA of 60, and lose roughly 4 PPM every day.... I add 1 gallon of 12.5% every morning which typically takes me to 9.5-10 PPM, and then it drifts down..

I would remove the chlorine tablets from the feeder and strictly use liquid chlorine. You will want to bring your CYA up to 30 and then continue to maintain your chlorine at the appropriate levels using ONLY liquid chlorine. This will require daily additions, but you will find that your pool...

I would stop using the chlorine tablets immediately. As you stated earlier, your CYA is right around 30, which means you need to bring your chlorine to shock level (12 PPM) and maintain it there. That means you will have to test frequently and continue to bring the chlorine up to 12 PPM. You...

I am the second owner, and I believe it was installed about 10 years ago.

I have the same issues; white chalky substance comes off when you rub or brush the pool. PH: 7.6, CH: 350, CYA: 70, FC: 9, TA: 100; so I personally don't think it has anything to do with the chemicals.. I really don't think its a huge issue, so I have just been dealing with it. Could this cause...

I don't believe so, but I used to use the test strips and rely on the pool store. This is the first year that I actually bought a test kit and did my own testing. I do remember adding a bunch of CH, just cant remember if this was last year or the year before. Do you think having a low CH in the...

Not sure how the previous owner took care of the pool, but for the past three years I was using 3" pucks. After joining TFP this year, I have only used LC (12.5%) & MA (Only been 3 months).. At the beginning of the season I had to add CYA, but nothing else has been added this year. Typically...

FC: 8 CC: 0 TA: 110 CH: 350 PH: 7.4 CYA: 80 When I brush or rub the walls while swimming, a white chalky residue comes off and disappears. Any idea what this is and how to fix it? Pool is about 8 years old. Thanks, Mike

I have been trying to lower my TA, hence the reason I keep bringing my PH down to 7.2. Just seems like it raises to 7.6 within 2-3 days. I will let it my PH drift to 7.8, and then bring it back down. Thanks for the input.

Seems like my PH is rising daily and every couple days I am having to pour MA in the pool to bring it down from 7.6 to 7.2. FC: 7.5 CC: 0 PH: 7.2 TA: 120 CYA: 70 CH: 320 Any idea why my PH would fluctuate so much? My TA started at 160 at the beginning of the season and I have since brought it...

FC:10 CC:0 PH:7.2 TA:140 CH:340 CYA:80 I am losing about 4 PPM of chlorine daily. Anything to worry about? Pool is crystal clear. Just seems like a lot to me. First year using liquid chlorine with no tabs. Having to pour almost 100 oz of 12.5 in daily.. could get real expensive. Pool depth goes...

Sounds like it is coming along, just make sure you bring it up to shock level consistently and maintain it.

I’m not an expert, but I don’t think you are adding enough chlorine. Assuming your pool is 19,000 gallons, and your CYA is 60, you need to bring it up to shock level which is 24 PPM. In that case you would need to add 568 oz and check the FC every couple hours to see if it is dropping. If so...

I think I read somewhere that you can use 1 dipper of R-0870 instead of 2 when testing FC with the 10mL sample. Is that true? Would the FC show differently if I used 2 dippers? Just curious.

Okay I’ll give the liquid chlorine a shot and see how it goes. Do you test for FC everyday and then add the necessary chlorine? Typically do it in the morning?

Does anyone here use an automatic chlorine feeder? If I use the chlorine feeder on a daily basis, how quick is my CYA going to rise? I have always used the feeder in the past, but never really understood the FC/CYA until last week. It really seems like a pain to have to dump liquid chlorine in...

See above. Any idea?

Tested this morning and didn’t lose any free chlorine, stayed at 28 PPM. CC is at .5 and the water is crystal clear. Finally!!!! In the beginning I had my chlorine feeder on which I think ultimately raised my CYA so I was shocking at the incorrect level. I turned it off last night and checked...

Say I don’t pass the OCLT, but everything else is perfect. Can’t I just maintain the correct chlorine level and move on? What’s the worse that could happen? Just curious..