I just had my plaster pool acid washed and replaced the sand in my sand filter. I am in Phoenix and the water is so hard you can walk on it. Now that the plaster is clean and I am going to use liquid chlorine to avoid powder shock, how can I remove the white build up on my tiles and keep it off. Is there a reliable product? Beautec maybe??
Calcium deposit line on blue tiles around pool.
- Thread starter CharlieGSD
- Start date
Welcome to TFP!!!To remove the build-up, you can use a water/muriatic acid solution and scrub it off. Or have it soda/bead blasted off.
There is no way to prevent it from coming back because it is the deposits left when water evaporates ... and we have a lot of that around here.
Thanks. I tried the acid scrubbing with little success. I just learned of the bead blasting. Too late now since I just drained and refilled. 
A pumice stone, elbow grease, and Motrin will remove it. Sounds awful -- fingernails on a chalkboard times 10 -- but it doesn't seem to mess up the tiles.
You can have it soda or bead blasted while full. The soda will just raise the TA/pH a little or the beads are removed from the pool by the contractor.
If acid didn't get it, it may not be calcium. What strength and dilution did you use? Did the white buildup foam up when you applied the acid?
- Jan 21, 2014
- 1,069
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Huge +1 to this. I have a metric "buttload" of dark blue tile...I've come rather accustomed to acid washing the tiles due to Jesus rated water. get a dropper of straight MA see if that foams on the "calcium". if it doesn't, it's not Calcium.