eric

[Watermom]

If it has been about a week since you added any stabilizer (CYA) so that you know it has all dissolved, then I'd add a little more to bump you up to about 40.

is 7.8 the highest reading that your pH tester can differentiate? If so, was your 7.8 a true 7.8 or was it actually even a darker red than that?

By the way, a BIG, BIG, thank you for becoming a lifetime member! That is SO awesome and we really appreciate it very much! Ben was very pleased to see that you had done so. We are very happy to have you be a part of our forum!

[ericorlisa]

our taylor tester will test ph up to 8.0. how much stabilizer should i start out with? i have a 3 lb. bottle from walmart. we are glad to be a part of this forum too. you all seem to run a high standard when it comes to the language and what's allowed to be discussed. this is really refreshing in this day and age. based on the size of our pool will 16 oz of stabiler add 12ppm of CYA to a 15k gallon pool?

[Watermom]

16 oz. of stabilizer will add about 8.5ppm of CYA.

The reason I asked about the limits of your pH tester is because if 7.8 is the highest your kit could read and you got 7.8, it could actually be much higher. But, since your kit can read to 8.0, then we know your 7.8 is actually 7.8 which is fine.

Regarding our forum standards, yes, out of courtesy to our members and ourselves, we do run a clean house. We try to be fair, honest and polite and we expect the same in our members. At least one of the Pool Forum staff reads every single post on this forum and generally we all read all of them. Occasionally we have someone come along who uses some inappropriate language or content and we edit it and clean it up and ask them to refrain from doing so again. Generally one request is all it takes, but once in awhile, we have to remove a user who will not abide by what is expected. We want the forum to be a place people enjoying being a part of in their quest to take care of their pools.

[ericorlisa]

hi Watermom, its been a while but the reason i've not poste anything is i've been wating for my CYA to get to 40-50ppm. i had to add doses two different times gradually increasing it. my latest readings are: FC-4-6ppm, CYA-45ppm(it's in between 40 and 50ppm), TA-100ppm and PH-8.0(Real Red and this is as high as my Taylor kit will Read). i thought the PH should be brought down so i added about 32-40 oz. of muratic acid. the water looked fine yesterday but today when i got home there was some debris on the pool floor. it was sort of brown like dirt but was lighter or fluffier. i vacuumed it today and backwashed my sand filter which btw it really needed since the return pressure had decreased in force considerably over the past few weeks and i notice my guage was reading less pressure about 10psi all the time that's when i concluded the gauge is faulty. i need a new gauge not sure where to get one yet. any way i vacuumed the debris and 45 minutes later i was finished and i checked the return pressure with my hand and it was little to non existent. i back flushed twice until water coming out was clear. i then switched back to filter and turned my pump on and what do you know my pressure was back to normal somewhat since im using a calibrated hand right now until i can get another gauge. is it normal to see debris on the pool floor after adding muriatic acid? oh btw we had 7-8 people in the pool saturday and most of them were kids from boy scouts and their siblings. not sure if the people count had anything to do with it but the kids got in and out several times tracking grass into the pool. the good new is that i've been checking FC levels before and after the pool party and the next day. never got below 4ppm and before the kids got in the pool i added some extra cl to the pool to compensate for usage guessing about 6-8 ppm. i have one more question for you before i go to bed. when should any member start a new thread?

[Watermom]

Hi ericorlisa. Glad things have been going well for you.

I have not heard of muriatic acid causing brown stuff to accumulate on the pool floor. I would suggest however, smaller doses of acid at a time when you need to lower pH. What is the pH now?

You definitely need to buy a new gauge, Pool stores carry them of course and maybe Home Depot of Lowe's? Not sure about that.

Regarding when to start a new thread, there is no hard and fast rule, but usually just whenever the problem or question is something different. Actually, I think I will move this post into a new thread and retitle it as "Dose of Muriatic Acid Caused Brown Debris on pool floor?" It will be in the "Pool Water Problems" section of the forum. Look for it there. So, we'll let the discussion be continued there for anybody that would like to reply.

[ericorlisa]

ericorlisa ----- I removed this post since you also had put it in the new thread. Let's continue over there instead of here. OK?