I have a pool where I need to raise CH to 300-350.
last week CH was at 240ppm. I added 5LBs CH to an 8,000 gal pool.
this week I tested and there was no increase. I'm thinking that the CH went into the pool finish as it needed it and this is why no increase of CH was found in the water.
Am I right in thinking this is what happened? maybe I need to add much more.