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Unfortunately, some local regulations require no CYA for indoor pools.

Thanks JamesW. It seems that things are moving that way. I'll start considering making an investment on such equipment. Any suggestions on places where to start looking? What about Carbon Activated filters? I've read they are good dealing with CC...

That makes sense, but with such a high bather load, shouldn't MPS get depleted in just a day or two? I usually drop in the MPS on sunday morning and won't take a FAS-DPD test reading until tuesday morning. I keep sanitizing with bleach normally until next sunday. Do you think CC test outcome...

There is some CYA in the water as I use dichlor eventually, just to keep the level around 20-30. I follow Pool Calculator suggestions to set the amount of dichlor. With that in mind I try to keep the FC level above 4 ppm. Since the CC level, most of the time I add enough bleach to take FC to the...

Yes I use MPS every week. I toss around 2 kg. according to manufacturer recommendations. I believe it helps to prevent chloramine accumulation, but it won't really help to eliminate them, at least not in the short term.

Yes, it is an Indoor Pool. For the last four to six weeks I've been registering high CC levels, ranging from 1.5 to 2.0 ppm. This might be due to a high bather load, which is around 12 to 15 people swimming and exercising every hour (mostly elderly and toddlers), from 7 thru 11 hours and from...

I see, thanks for the quick response... So, in my case it seems that SLAMming takes too long to make CC disappear, Is there another way to lower the CC level in about 24 to 48 hours?

Hello Everyone, I was doing some research on chloramines and I found this article about using ascorbic acid to eliminate chlorine and chloramines from tap water. http://www.sfwater.org/Modules/ShowDocument.aspx?documentID=6920. It seems that Chloramines are a fairly common method to sanitize...

Yes, there are regulations on the matter of course. I take them in consideration in a daily basis. One is to keep zero-CYA level for Indoor facilities. I prefer to bend this a little bit to get the most out of the chlorine. Regulations also state that about the 5% of your water should be...

Based on the facts, I believe you are right on this. I assume that keeping the FC level as close as possible to the shock point will help.

Needsajet & Duraleigh, thank you both for your answers. On the backwashing matter, I got to say that I've been experiencing an unusual increase in filter PSI. My clean-pressure is about 19psi and goes up to 22psi in three or four days. This causes that my the heat pump does not get enough flow...

Hello Everyone, I am currently having some issues with high CC level and dull water. From Monday thru Friday, my wife is using the 17,000-gallon-pool to deliver exercising sessions to several groups of seniors during the morning. The afternoons are dedicated to children and adults. In a...

Well, the stains can be removed with the bare finger, so I guess if it were metal stains they would be more difficult to remove.

Yes that sounds good to me. Unfortunately, I can not perform that tonight, but how about this: My FC level at 10:30 a.m. was 12.5, and my pool is an indoor one with no direct sunlight at all times, Would you say that if I record a max of 2 ppm lost during tomorrow's morning test it is acceptable?

I am glad that you bring this up. If I understand well, correct me if am not, I still can SLAM my pool and have swimmers in it during the whole process? keeping in mind that shocking levels should never been exceeded. This is important to me, as an option, since I work in a swimming school and...

I would say yes, I could remove some of the "dirt" with my finger. I will unscrew the existing 6 eyeballs and wash them in a mix out of chlorine and water. That might correct the issue.

HI everyone! I was doing regular brushing and vacumming shores this morning and I found the jet returns were light brown tinted inside. I also noticed that the water pump basket has the same coloration in the upper middle section. I wonder it this could be some sort of algae? This may...

Hi everybody! Two weeks ago I had a terrible issue with a high CC level on my swimming school. My main instructor and some of the students got a rash problem. The CC Level got up to 1.5 ppm. Last weekend I decided to SLAM the pool raising the FC level to 20 and hold it all the way through...

Thanks for your quick responses. The Pool is made out of brick and cement, all surface covered with venetian tile. Considering this I assume CH level needs to be taken care of. Just a few of the tiny tiles had become loose and I am thinking that having such a low level might be the cause...

Hello Everybody, I am owner of a small swimming school in southern Mexico. As you might imagine my pool's bather load is heavy during the most of the season. I really had serious problems with very high CYA and low Ph levels last year, which derived in poor water quality, high expenses on...