No experience with it, and just an idea, but instead of a slow, low pressure, constant flow drip over 3-4 hours, you could use higher flow emitters and higher psi off a garden hose / spigot with a digital timer like the Claber Aqua Video 6 , which allows up to 6 cycles a day, then cram those 6 cycles into 3-4 hours. Like 2 minutes every 40 mins for 4 hours, 1 day a week, or it may also be possible to set the time on the timer so your waterings takes place between "10pm" on "Monday" and "2am" on "Tuesday" and be able to get 12 cycles in 4 hours. Say 1 minute every 20 minutes, over what would be 2 days according to the timer. Or just use a couple utilitech digital timers that allow 20 events a week, which can be all in 1 day and at 1 minute intervals, to power 2-4 sub pumps connected to drip manifolds. That way you could have separate reservoirs and pumps for separate beds if you have different strains that require different nutes or watering rates. High flow, high psi emitters on timers may give the same kind of slow drip soaking effect without the unevenness and clogging of constant, low flow, low psi I guess is what my point is.
