Ah yes blumats. I have used them in coco coir for 4 runs. My most recent was my moby dick from last year. After using the blumats and pulling my hair out each and every run, I put them in the shelf and went with timed drip feeds and/or flood table.
I kept my blumats on a constant slow drip the best I could. Somedays for no reason they stopped dripping and other days I came home to my catch tray flooded full of what was I my reservoir because a blumat stuck open and "ran away". My advice is make sure you use some sort of clearing agent like florakleen at least once every few weeks to a month to keep the small flimsy drip lines from getting blocked by salt build up. I still flushed her at least once a week with low level nutrient solution to keep salts from building in the coco.
I have since put the blumats on the shelf as I was tired of feeling like I was on "lets make a deal" and what's behind door #1 every time I opened up my tent.
With a good programmable timer, a medium to large storage tote, and a small pump you can easily put together an automated feed system.
What ever you do, if you wish to continue using the blumats, make sure you have something under your plants that can catch the contents of your reservoir in the event of a run away. If you have a more specific question, let me know. Not many people in here use or used blumats.
+2 strains
