Friends of ours moved into a new house this year. They have approx a 20,000 gl vinyl lined pool. Their house is in the country close to a number of farms. They go to the same pool store where the prior owners went. Here are my two questions:
1) They are using bromine instead of chlorine. Does that make sense?
2) The pool store has them adding a chemical (they did not know the name) that makes (I am going to use their words here) "little white cotton balls" at the bottom of the pool which they then need to vacuum out. The pool store people told them they need to add it because all the nitrates that get in their pool due to the farms. Does this make sense?
Our pool was new last year and I have been following the advice here with great results. I have never heard of what they are doing so I am just checking for them.