Quote Originally Posted by cchase009 View Post
Most important - I know I have to ventilate the room when I add the chlorine, do I need to send my Wife and kid on a small excursion to avoid fumes or anything?
To the best of my knowledge, this is the first time I've encountered a conversion on an INDOOR pool. Many of the products that form when you chlorinate a mess are (a) volatile (can go into the air) and (b) noxious. Can you set up continuous ventilation with your pool -- windows open, fans running in windows, etc? If not, I'm unwilling to advise you to convert, until I do some checking.

Did you do the pool chart? If so, tell me and I'll look again. If not, please do so:
Pool Chart Entry Form
Pool Chart Results
If you've got a concrete pool, and dry ground, the best thing would be to:
1. Replace your filter media (sand, cartridge, possibly, DE grids)
2. Flush the pipes into the pool with fresh water.
3. Drain the pool 100%

If you can't do that, and can't provide continuous ventilation, I'm going to have to see if anyone knows (and will tell me!) what happens, in terms of volatile byproducts, to pools when you chlorinate PHMB.