Phosphate media

[midgetwaiter]

Originally Posted by mark

Looks like you have put some thought into this.

Understand the difficulties in measuring phosphates and as doesn't seem the media itself in indicating (such as with types of DI resins) that's why I'm wondering on a method to determine when to change the media.

Do people normally just change out based on time similar to if running carbon (~6 wks)?

You'd change it when your measurement starts going over your target level. There isn't going to be a standard schedule that works for everybody, it depends of your total phosphate additions and how much gets taken up by other mechanisms, etc.

I got in the habit of mixing a half recommended dose amount of GFO into my carbon so I only used one reactor. That mix got switched every 2 weeks.

[JOEL]

Hc gfo instructions
Change the gfo when phosphate levels rise or algae growth becomes visible.
I will give that a try.