help with adjusting please

[waterbear]

The BioGuard Pool Magnet Plus product you are using is a phosphonate which means that though it will sequester the metals in your pool, it will also make for great algae food. There are better metal sequestering products on the market that are not phosphonates such as Pool Stain Treat (by the way, Jack's Magic Pink Stuff has the same phosphonate main ingredient as Pool Magnet Plus as does Jack's Magic The Blue Stuff and The Vinyl Liner Blue Stuff). At any rate, you've already used the Pool Magnet so don't worry about that. It's not a big problem; just a less than optimal solution.



Richard

Richard, Richard, Richard!!!!
I hope you are not buying into the phosphate thing! Using a phosphonic acid based seqesterant will not promote an algae bloom if chlorine levels are proper! Removing phosphates will not eliminate algae unless PHOSPHATES ARE THE LIMITING FACTOR! (relatively rare) Most pools have nitrate nitrogen in them and that is also algae food but we don't test for nitrates or nitrites in pools! My own pool has an orthophosphate reading of between 2000 and 3000 ppb and it has never had an algae bloom! (and this was way before I added borates to the watar!) My own personal experiences with staining in my fiberglass pool is that the phosphonic acid based seqesterants work much better at keeping the stains from returning then the EDTA based chelating agents.

Edit: Much of what I know of algae blooms also comes from 30+years experience in keeping marine and reef aquariums also!