calcium carbonate

It's been a while since I've been on here. Pool is 20x40x10ft. Short version, muriatic acid won't remove limescale, calcium deposits from pool walls. I don't know what else to try. Back story, the house we bought had been sitting for 2 years when we bought it in sep of '19. The pool was a...

I’m new to this forum so bear with me. I have a 36k liner pool that turned green over the winter in FL and sat without running for 4 months. The walls and waterline have calcium on them that feels like sandpaper. We drained and refilled the pool and balanced the water chemistry. Problem is we...