I don't understand ...

[GolfTop]

It's not quite 40-love in the pool battle. More like 30-15. Still some of the unwanted stuff showing up, but it's diminishing. Sounds like the key is to be persistant with the shock level, brushing, backwashing.

Funny about the calcium. I used bleach all last summer. Not sure where the calcium is coming from. Maybe tap water is rich in it.

Thanks for the response.

[GolfTop]

Just a follow up for those who might be wondering if the advice on this problem worked.

For now, it has worked perfectly. Pool has been at shock level for about a week or so and no evidence of the mold is present.

I plan to keep brushing, shocking and backwashing through Sunday at least to ensure it's all killed.

Thanks for the help.