Well, my system got filled up again monday, and I've been testing out the semi-homemade doser. Overall, good results. I would highly recommend using drippers for the acid, though. Even with a 1/2 gph dripper, the ph changes fairly fast when dosing, although you can also control the ph change rate with the concentration of the acid too.

But, it's been wonderful. Been spending more time watching, less time balancing! Totally worth the $100. I'm sure the plants are happy with it too. The ph has always been staying between 5.9 and 6.0, but gonna turn it just slightly lower.

Gen, get yours yet?