I have 3 reasons for draining the pool... salty, salty, salty water.
Two seasons ago, the water tasted slightly salty but not enough for me to be certain whether or not it was my imagination. Last season, it was salty enough that the neighbor's kid mentioned it. It is definitely worse this year. I'm planning on draining the pool, maybe as early as this weekend. I also have a staining issue that I think was caused by letting the PH get too high during the off season. I have NOT verified whether or not it is organic or metal, but I suspect it is metal. I'll do the hockey puck / vit c test tonight. Vitamin c only works on Iron stains, right? If neither helps, I'm not sure how to get rid of it other than an acid wash, which I'll need to do when I drain the pool.
I have a couple of questions...
If the vit C tablet reduces the stain, then I think I need to do an ascorbic / citric acid treatment to eliminate the stains. Should this be done before or after the refill?
If the hockey puck reduces it, how do I get rid of the stain? I shocked the **** out of the pool after being on vacation for a week and the pumps not running. The stain didn't reduce.
I'm hesitant to drain the pool because of fears of the pool floating up. We're in a drought, but have had some rain in the last few weeks. Is fear actually warranted?
I have an 8 gallon liquidator. It collects salt in the bottom, as is expected. When I add chlorine to it, I pour it quickly and my liquidator gets really, really cloudy. Am I correct in assuming that this is probably where my salty water is coming from? I never considered that to be the issue until recently. If this is the problem, then wouldn't salty water be an issue for anyone that uses liquid chlorine after just a few seasons?
Also... F black algae. Thought I got rid of it before I went on vacation. Came back to it having a party.