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I have the same cell as you. It always reads about 200-300ppm lower than the test strips I use read. Leslie's always told me my salt was even higher than my strips. They use an electronic sensor test. As long as you know your salt level and your system isn't shutting off due to low salt, don't...

I have been adding bleach since water is too cold for SWG to work. I haven't added this week yet. So I expected it to be low. I am glad to know why the CH and TA have gone up. That was confusing since I haven't added or lost water. So if I continue to keep CSI low to clean up scale, will I end...

I have been testing every two weeks over the winter. I have been maintaining a CSI of -.6 to -.8 trying to burn off a white scale from my rocks and tile and black streaking marks on my plaster from two years of my pool guy keeping PH at 8.2+. There has been a slight improvement in the tile but...

Hi. I have been working on lowering my TA for over a week now. I added acid and dropped the PH to 7.0. I am running my waterfall and ran a garden hose from my rain drain to a sprinkler head hung over the wall to make bubbles. It takes about three days for the PH to raise back up to 7.6. I have...

I did plug SWG back in and hung two socks with CYA. Re-tested water and the numbers are: FC 9.5 CC. Less than .5 (barely pInk) TA 140 CH 310 CYA 50 PH 8.2 (between 8.0-8.2) Salt 3310 Do I wait for CYA to disolve and mix before I try and lower PH? I was getting ready to add acid to lower PH so...

My target was 75. I'm am at 40 now. I get 4lb and 1 oz with the calculator. I bought a 4 lb jug. Was going to use all of it. Should end up around 74. And lower my ph by .63 to a level I don't know because I haven't tested PH because it is not accurate with FC above 10ppm. How did I do?

Ok. I'm getting done. I found out that there was a difference between my test and my Son's. He was stingy with powder and was so slow with drops that they were a little small. I had him do a test right next to me and our numbers were off. After dark last night I got a FC of 16.5. This morning...

It has been unplugged since I started the shock process. Someone told me to do that way back in the beginning. I checked my FC level at 6:00pm and it fell to 10.5. So it dropped 9ppm in 6 1/2 hours of full sunlight. Given that my CYA is still only 40, does that sound right?

Well, the blueprints for the pool say 13,900 gal. The builder says they doug it a little deeper. I know I had them stretch one end out a little wider than planned and it is about 6" deeper in the bottom then planned. I always figured about 15,000 gal. I don't know for sure. The salt I added...

I did test in the evening, I just didn't test earlier that day after adding the chlorine to raise the level back up. I can only assume what the peak was earlier that day based on what the calculator said it would do. Today, one hour after adding the gal of 10% chlrorine the FC is at 19.5 and CC...

The sun was coming up but not hitting the pool yet. Yesterday, I used calculator to see what effect adding the remaining amount of bleach I had left was. It was 16.6. I added it and then tested later that night and still had 16.5. Never actually tested to see the 16.6. Jut assumed the calculator...

Ok. I retested with a large scoop and still got 10.0. I guess I'm not done yet. ???

The scoop issue could be the problem. My son did the test last night. I'll retest with a larger scoop and repost the result. Thanks.

I'm confused again. I continued to test FC yesterday. It fell to 13 so I adjusted it to 16.6 (the amount of bleach I had left)around noon. At 10:30pm it remained at 16.5. I had added 4 bags of solar salt around 3pm. I tested FC this morning at 7am before sun hit the pool and it dropped to 10.5...

Thank you Jason.

I ran home at lunch and re-tested. Pool is in full sun from around 7:45am to 3:00pm. FC 15 (that is where it was this morning, I posted 13 by mistake. 15 is my shock level.) CC 0 PH 8.0 I will go ahead and re-do the OCLT as advised. I probably won't have to add much chlorine, if at all, to...

Water looks beautiful this morning. Better than it has in a long time. I lost 1.5 parts of FC overnight but we had an overnight thunder storm and I guess we got quite a bit of rain. Not sure exactly how much. But my FC was holding good all day yesterday, so I think I should be okay. My readings...

No signs of algae. I added a small amount of chlorine this morning to bring back up to proper shock level and FC has held for three hours and still no CC. I brushed very well for over an hour again and the water got a little cloudy. It seems to be clearing up already though. Have been running...

Oops, I was just reading another post and read that he needed to shock the cover, toys, the vacuum, etc.. I just realized that I have had the waterfall and the solar off this whole time. I switched both on and I'll continue to shock today and see what happens.

I shocked all day yesterday. I only had to add more bleach after the first hour. It held steady all day. I brushed good after hour three and water got cloudy. It cleared by early evening. I tested after sunset and again this morning just before the sun hit the water and I only lost 1 part FC. I...

After adding the chlorine to shock per the pool calculator, do I need to test right away to make sure I reached the FC level desired or do I just trust that the pool calculator is correct and wait the hour to test?

OK. I drained a little more than half of my water and re-filled it. my numbers are now: Salt - 1600 (that is on the display but, prob 2200-2300) FC - 2 CC - 0 TA - 170 CH - 290 CYA - 40 PH - 8.0 I was going to shock and worry about the salt and the rest later but, I think I read that...

Okay. That's what I thought. Thanks for confirming. I'll get that done ASAP and post the numbers. Is there any amount of wait time after refilling before re-testing the water?

No, It's 100. With a 50/50 mix of pool water and tap water I got a result of 50. I multiplied that by 2 and get 100. Did I miss something?

Thanks for the reply. I performed the diluted CYA test and got a result of 100. I tested my fill water and it has a CH of 120. That is what I get on my 4 way strip I use in my spa when I refill it also. So I believe that. The PH of the fill water is 7.3. Again that is what I usually see in my...

Hello, I have found this site to be a wonderful place to get some true answers. I have been mainting my pool myself since my builder went out of business last year. I have been lucky I guess, until now. The last few months I had seen a rise in TA with a simple test strip. My SWG panel keeps...