My question is about how theory differs from practice.
I have been monitoring a pool and all the parameters are balanced, except cyanuric acid.
The thing is, the chart says that I am supposed to keep chlorine levels at a minimum of 7ppm, but the pool has levels below that and it is completely clear. I am talking of a SWG pool.
Now parameters are the following:
And the pool is completely clear! The water is out of balance and most of the parameters are too low.
In addition, the pool guy backwashes filters every other day, without the pressure from the filter rising, and he claims that if he doesn't the pool gets turbid.
So that leads to my question: How much does practice differ from theory?
Just an extra question: We use calcium hypochlorite and trichlor. Pool guy says that if the calcium hypochlorite smells too strong, it is because it is Chinese and it doesn't work, and that high quality calcium hypochlorite and trichlor have virtually no smell. Is that true?
Thanks in advance.