Topic split off by Moderator
about 5 weeks ago i got what looked like staining under the liner of my pool. The liner is 11 years old and i have never had this problem before. Two things may have triggered it off !.
1. i bought a Floatron ioniser about 10 days before
2. i topped up the pool with a considerable amount of water from the mains
the guys looking after my pool took out the Floatron and after about a week the staining went.
yesterday morning the pool was clear and no sign of any staining but about an hour after i added wter from the mains i noticed the staining returning especially where the pool depth slopes away. PH is a bit high and chlorine is very low. Is this a question of balancing the chemicals or could it be more sinister. I live in france (not that that makes much difference)
Any help would be greatly appreciated.