While the appearance of your swimming pool won’t be the sole and definitive factor in your pool ownership experience, if staining is becoming visible in yours, this can be off-putting to potential users. It could also, of course, be an indicator of more serious issues that need to be addressed. After all, it tends to be imbalanced water that most often causes staining in a pool.

One thing is for sure – a pool liner does not become stained for no reason. An outside agent of some kind…