Gotta order the 30m coil of dripper hose and make dripper lines long as you need, those little pieces SUCK, they end up dictating how you run your lines.well, set up my blumats last night. still having to adjust them to avoid runoff. highly recommended....so far. the tubing that comes with the set i ordered is fairly shitty but besides that they are rockin
I think the whole coil is like 30 bucks.
Re: runoff try dialing in about 3 arrows instead of 2.
Also, pack soil a little bit.
Also, they recommend 8cm of hose sticking out, unless you are using big pots, I shorten this to around 5cm, makes the unit shut off a bit snappier,IMO.
Hope this helps!
SD