Pool only a year old. What are these stains?
- Thread starter jltmaxx
- Start date
Here's three WAG's......take 'em for what it's worth. :lol: :lol:
The lighter area on the bullnosing looks like a chemical spill of some type....possibly acid but I doubt it.
Ditto for the sandy looking area in the grout.
The gray might be where the darker thinset underneath the tile is showing through. In other words, the tile man left too much thinset that squeezed up between the tiles and the colored grouting didn't cover it up.
The lighter area on the bullnosing looks like a chemical spill of some type....possibly acid but I doubt it.
Ditto for the sandy looking area in the grout.
The gray might be where the darker thinset underneath the tile is showing through. In other words, the tile man left too much thinset that squeezed up between the tiles and the colored grouting didn't cover it up.
They're on every brick and mortar joint. All 136 feet of them. It's not chemical. The grout/mortar answer is a good possibillity, though. Any other ideas?
- Apr 26, 2009
- 419
I still have virtually no idea what they are. To remove them I would try......
1. Clorox...full strength, then rinse
2. 3:1 solution of water/muriatic acid. Don't leave it on the grout for more than say about 30 seconds. It'll prbably foam up right away on grout so keep as much off it as you can.
1. Clorox...full strength, then rinse
2. 3:1 solution of water/muriatic acid. Don't leave it on the grout for more than say about 30 seconds. It'll prbably foam up right away on grout so keep as much off it as you can.
Sorry. Yes. It is a pool that has a saltwater chlorine generator. The stains on the coping don't concern me as much as the stains on the concrete/mortar/grout or whatever it is. Those really, really scare me because they were pretty and white (white-ish) when new.
- Apr 26, 2009
- 419
- Apr 26, 2009
- 419
It looks like chemical splatter - have you added acid by walking around the pool? My other guess would be salt stains based on the info, but it doesn't look like them.
When I add acid, I'm always real careful and do it right above the water so I don't spill any. These stains are around the whole pool, even where I've never added acid.
- Apr 26, 2009
- 419
Is there any way to get the stains out before I seal it? Or better yet, can I color it before I seal it?