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For a little more background, at the start of the pool season the pool was green and filthy. The pool was uncovered last winter and had lots of leaves etc. in the water. My son first got in with waders, scooped, vacuumed, backwashed etc. multiple times then added lots of liquid chlorine...

I added 1.5 boxes of Borax to get the PH up to 7.5 and the TA measured 70ppm (didn't add any baking soda). The FC was at 8.5 ppm and the CYA 40ppm. There may be a very slight improvement in the water clarity. I think I can just barely see the bottom of the pool's vinyl pattern. Does...

27' diameter, 46" water depth estimated at 18,500 gallons. The CYA is 40ppm, using a standard sandfilter and liquid chlorine as already posted. Headed to the store to get borax, baking soda and make adjustments. Will post new reading when complete.

Originally the CYA was at zero so we added 2 gallons of liquid stabilizer to get the CYA to 40 ppm. While waiting to receive the Liquid stabilizer we used tricor chlorine pucks to get some CYA in the pool. After the CYA was at 40 ppm we switched to 10% liquid chlorine. I know the pucks will...

I'm helping my son try to clear up his pool water. He has a 27' above ground and the water is too cloudy to see the pool bottom. We have had it up to shock level FC or above for about a week but little or no improvement in the cloudy water. We use a TF-100 test kit and the CYA is at 40 so we...

My son is trying to get his above ground pool (about 19,000 gallon) cleared up after the winter. He just had it in shock mode for a few days and the water is looking much better compared to the "swamp" he had last week. The water is still somewhat cloudy but last night he passed the OCLT test...

Hello, Just opened the pool for the third season after having it installed. It's a vinyl 18x36 but the problem is with the ladders and the ladder "sleeves" that they slip into. The sleeves are embedded into the concrete deck and they have a crusty buildup that makes removing and installing...

I'd like to get some clarification on how to read the view tube on the cya test. As an example when looking down the view tube I often think the black dot has completely disappeared. But after a few seconds I may start to see a very slight shadow where the dot is. (like I can see it and then...

It is cloudy but we would be able to see swimmers even in the deep end.

I just checked the FC level again and it is at 7.5 and the CC =0 or at most 0.5. This is up from a level of 5.0 this morning because I got up briefly from my nap about three hours ago and added 121 oz of 8.25% bleach. I also should memtion that on sunny days like today we get sun all day long...

Well I just got up since I work a 12 hour night shift. Thanks to all for the response. Because of my work schedule I can't do an OCLT until Sunday night but I can bring my chlorine level up. I just can't stay up all day testing and adding bleach. I have about three hours to tend to the pool...

I forgot to mention that my CC =0.5

First let me list my test results from this morning. FC = 5.0 PH = 7.5 TA = 100 CH = 100 CYA = ~42 The water has been very clear since pool opening on 5/4/15. The test levels have been consistently around where they are now. Yesterday I noticed the water was starting to get a little cloudy...

Agree completely with the advise to slow down. Not the way I normally do things. I'll make it a priority to add Muriatic Acid tomorrow and shoot for a ph level of 7.6. Thanks, Dave.

After adding the four boxes of baking soda yesterday to raise the TA, I found the PH was up also to about 6.8. Since that's still too low I added three boxes of borax (20 mule team 76oz) and measured ph again. The ph reading was about 7.0, so I went to the store for more borax and added two...

I just took over maintenance of my parents 20 x 40 in ground pool. It was essentially a swamp when I started last week but is getting better each day. My father had always added chlorine with stabilized "pucks" so when I started I expected to see his CYA level about 100 or higher. I was...

Thanks for the responses. I considered the FAS-DPD test to be the most reliable test and your answers gave me the reassurance I was looking for. Dave.

I have the TF-100 test kit which has both the OTO Chlorine Test & the FAS-DPD Chlorine Test. I use the OTO test daily to monitor chlorine and PH and the FAS-DPD test about weekly or so. Lately I've noticed the OTO chlorine test reading starts to creep up 1 or 2 ppm after the sample has set a...

I did another water test and the result was great. It seems my procedure was the problem. As suggested by pwrstrk (Jeff) I was waiting too long after doing the FC test before starting the CC test. This time I was ready and started the CC test immediately and got this for a result.... FC -...

I'm not sure what advanced prep is chemically. I don't have any more and the webpage only says it removes minerals such as calcium, iron and lime. I could go to the pool store and get that off the label if it is needed. I plan to do another test sometime tomorrow. I'm really hoping this is...

I did some research on what was added to the pool from start up. Initially the pool had been filled with drinking water from the local town water utility and had a greenish tint from chemicals added for water purification. I forget what it was called but the pool installer said the tint would...

Thanks danacc, I'll have to see if I still have the container when I get home or check at the pool store for the ingredients.

One thing I forget to mention was the CC test of 2.5 ppm. The advice on the forum for a CC reading above 0.5 is to SLAM the pool, but the pool doesn't appear to need a SLAM. The water is as clear and odor free as drinking water. Looking at it or swimming in it you wouldn't think it needed...

We have a newly installed IG pool and I just got the test results from the first water sample. I was a little surprised to see the results are not really ideal since the water seems sparkling clear from my perspective. My test kit is the TF-100 and these are the results.... FC - Free Chlorine...