Does the chemical cause any stains in the Pool?
If you substantially overdose your pool, turquoise marks will appear on the walls.
If you stop dosing the pool these marks will slowly disappear on their own. If you wish to remove these marks faster use only Hydrochloric acid (normal pool acid) for one to two weeks, making sure you maintain the correct pH (7.0 – 7.2). Then recommence dosing with PoolSan solution 3 to 4 weeks after the stains have disappeared. The minerals in the solution are then IONISED and will not revert to a solid nor a crystal.
If you stop dosing the pool these marks will slowly disappear on their own. If you wish to remove these marks faster use only Hydrochloric acid (normal pool acid) for one to two weeks, making sure you maintain the correct pH (7.0 – 7.2). Then recommence dosing with PoolSan solution 3 to 4 weeks after the stains have disappeared. The minerals in the solution are then IONISED and will not revert to a solid nor a crystal.