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I have an in-ground pool at a house I've been renting for a number of years. I drained it a few years ago and began a process of re-surfacing and re-painting it. A few years prior, I had drained and re-painted it. Perhaps due to an excessive use of chemicals, I noticed some cloudiness in the...

I've searched on the internet but couldn't find an answer to this question. How many pounds of 70% granular Cal-Hypo would be needed to equal the chlorine in 5 gallons of 5% liquid bleach?

I have a "Pentair Clean and Clear Cartridge Filter". (I don't know why it's called a "filter" instead of a "pump" or "cartridge filter pump". That's the word used in the Owners Manual.) In the manual, there is this WARNING. Everything is in capital letters, due to it being a warning, so I'll...

This brings up a point that concerns me since using non-Clorox household bleach in my pool. I'm in Latin America, so the choice is pretty much off-brand bleach. After adding a gallon one night recently, the following day some swimmers reported a burning sensation or stinging in the eyes. I...

The person taking care of my in-ground pool claims to have been using one gallon of muriatic acid and two pounds of trichlor per week. I thought that he had said that he was using an algaecide, as well. But he said no. [I'm in El Salvador. He speaks Spanish. Me, not so much.] A few weeks...