QUESTION - Using Physan 20 in ALL greenhouse water ?

[EdinAZ]

I'm not sure if this is the correct forum for this, but if an admin feels it should be moved, go ahead and do so.

I have a large RO system with pressure tank for all of my greenhouse watering (misting is straight "house water"), and it feeds through an irrigation controller, so I have several "zones" with different watering cycles. I do any other watering manually, and have a "plain water" hose, and one that runs through a Dosatron for fertilizing (both also RO water).

My question is:

I have a spare Dosatron injector. Could I set this up so that ALL water going into my automatic system is injected with Physan 20 (BEYOND the RO, obviously)? I've used Physan 20 for years and it has worked well as a bactericide/fungicide.

I just wonder if applying the Physan automatically every time I water, would be a good prophylactic measure to keep algae, fungus, etc. at bay.

I'll be re-configuring my irrigation zones, which will involve re-plumbing the valve set-up, so it would be easy to do at the same time. Any problems with combining it with the fertilizer watering?

Any experience, ideas, opinions, comments, etc. are welcome. (ANY comments . . . call me an idiot if you want to . . . just explain WHY I'm an idiot, and that will be helpful).

Thanks in advance.

Ed