Browse Forums Landscape & Garden Design Re: Irrigation mainline pipe size backyard. 3Aug 12, 2010 2:33 pm Fu Manchu yeah 25mm will be fine. 20mm you may get away with but could be iffy without knowing flow rates and water pressure. I'd be using 25mm for peace of mind. If you are using drippers on the trees look at using the Netafim drip line which will provide a much wider area of even watering rather than isolated spots of narrow wet earth with drippers. If you use regular drippers spend the time adjusting them when finished to get even water flow from each. Also use a few per tree so you get better root growth. I've started using 20mm, I believe it should be fine with the flow rate. I've put 4 drippers per tree, so that the roots grow better. Thanks. Hi all I am looking to run a water line under my concrete footpath which is directly next to my home, was seeing if this is possible without cutting the entire section… 0 20165 Hi Brainstrust, I had a go at creating my own irrigation plan, keen to get some feedback. It will be run from one 750-800W pump, off 2* 5000L rain tanks. Each zone… 0 21909 OK it's been a little while! I've been busy getting time where I can to work on this. I started by grading a pad (borrowing a… 26 19955 |