take it up to 10 drops per gallon for a heavy infestation. let the blumats do their job (read ......don't hand water anything for a while so that any moisture the gnats get is inoculated). doing as much as you can about the flyers will break their cycle and help a lot. sticky traps or shaking the pots while you are running a shop vac over them helps,but if you want to really fuck them up a pyrethrin fogger will put a hurtin' on em very quickly.
cut the little plastic tit off the fogger so it won't lock anymore and you don't have to empty the whole can. turn off any fan that has a carbon filter on it or any fan that extracts air from the room but leave circulation fans on. remember NOT TO spray the plants directly if you can help it. it's a fogger
fog the room - close the door - wait 5 10 minutes - take deep breath and hold while you open the door, turn the filtered fans back on and GTF out - wait 15 minutes and go back to normal gardening
i've done this with both lights on and lights off and the plants didn't seem to mind.
this will thrash everything that flies
depending on the size of the grow one small fogger should last you YEARS if you use it right. gnats are pretty easy to kill and pyrethrin is pretty eco friendly. between it and the BT your garden should be gnat free in less than 2 weeks.
neem seed meal and the teas you can make with it help a lot if you have chronic gnat problems too. i've never tried running it through a blumat and never would but it is a great top dress and drench
I've been running 10 drops/gal, and spraying with DR.DOOM(pyrethrin) daily. Seems to be working. Once they're under control, what's a reasonable dose for maintenance?
I just did a little research and found that most (if not all) compressor hose is made from PVC and "Flexible PVC products contain toxic plasticizers that leach out of the material and can be a health hazard for users. PVC plastic is not widely recyclable and when burned releases dangerous hydrogen chloride gas and dioxin, one of the most toxic chemicals known."using orange air compressor hose from diy, as my loop, blumat tees fit right in.. only 33 cents a foot too
just about to set these up. Im intending to upgrade to 3/4" line and run them all from that with 3mm line.
Not quite sure about the return line from top rez to bottom. Was thinking about just drilling a hole and put some pvc in there and then siliconing around it so its water tight. Does this sound ok, any better ideas?
I have a 250gph pump running in bottom rez on timer
I just did a little research and found that most (if not all) compressor hose is made from PVC and "Flexible PVC products contain toxic plasticizers that leach out of the material and can be a health hazard for users. PVC plastic is not widely recyclable and when burned releases dangerous hydrogen chloride gas and dioxin, one of the most toxic chemicals known."
See article: http://www.watoxics.org/healthy-living/healthy-homes-gardens-1/factsheets/vinyl
The SuperFlex tubing that's discussed earlier in this thread is silicone (same as the 3mm Blumat tube) and just as flexible and easy to use.
.just about to set these up. Im intending to upgrade to 3/4" line and run them all from that with 3mm line.
Not quite sure about the return line from top rez to bottom. Was thinking about just drilling a hole and put some pvc in there and then siliconing around it so its water tight. Does this sound ok, any better ideas?
I have a 250gph pump running in bottom rez on timer
Thanks guys. Any idea where i can grab these drains?