looking for info on liner staining due to iron and how ionizer interacts

[PoolDoc]

Getting rid of the stains will require a LOT more than turning off the ionizer and adding chlorine. In fact, raising the chlorine high on a heavily stained pool will tend to make the stains worse.

Bottom line: stain removal is not compatible with ionizer use; on a pool where an ionizer has been used for 14 years, it's probably not even possible without draining and refinishing.

Important note: any chemicals that help REMOVE the stains will DISABLE the ionizer's positive effects, and make it rather likely you get algae.

Recommendation: live with the stains and continue to use the ionizer. If you want to get rid of the stains, get a new finish (or a new liner) and then dump the ionizer and switch to chlorine. Don't try to mix and match. (This is why we don't support ionizer use -- it's just not at all compatible with the way we approach pool care!)

[cindybsull]

Thanks again. Lesson learned (albeit the hard way). I'll follow your recommendations and live with the staining. Have a good summer.

[PoolDoc]

Your welcome!