Help : Drip System - Drain to Waste

dunno1-o

Active Member
Hey guys new here this is my first post hope you may be able to help feel free to add or comment on anything at all i'm encountering a lot of weird and interesting problems trying to sort out kinks in my current system,
Im running a perpetual grow and am currently trying to set up a drain to waste drip system to save time as i work a fair bit.
First question - how do you or have you fixed the problem of having water left in drip lines after a watering cycle, have not been able to find anything about this online with actual answers.

Second question - if my pump has a max flow rate of 145 gallons p/h and an outlet size of 12mm is it safe to pump from the 12mm outlet into a 19mm pvc pipe.

Also how do you guys set and maintain your drip times over the whole grow and if you are using a drip system to feed a perpetual grow how would you possibly go about setting that up ?? feel free to add anything at all cheers guys
 
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