This is my very first post here.
We have been a pool owners for less than 2 weeks and everything is very new to us. I don't even remember all the pool parameters yet (sorry!), I will work on that.
And I am sorry I don't have water test results but I will have it tested tonight.
The pool inspection (before buying) mentioned high acidity (low pH) of the water. The previous owner (who had this pool for 8 years) opened the pool for us and balanced the water, so we started using it.
Last week the water seemed to be still acidic; the strip test showed low pH and low alkalinity.
We took the water to pool store and the test showed that the copper is high (also low pH + low alkalinity + low FC).
The pool store guy told us to look for any rust in the pool - (we found rust on skimmer screws) and he told us to buy the chelant agent (Metal Free).
According to him we should get rid of rust first (so replace the screws), then add chelant agent, and in the end take care of balancing water.
However I have some doubts/and questions:
1. Can rust from screws cause high copper levels? Steel screws mainly contain iron. So what copper has with it? Not sure if he tested for iron.
2. WHAT IS MORE IMPORTANT: balancing the water or adding chelant agent to bind the copper first?
3. Can copper presence influence balancing the water?
4. What is a safe level of copper for the pool (I mean if we want to use it)?
Thanks in advance for any recommendations/hints,