new mainline tubing

little_minnie(zone 4a)October 31, 2013

I am going to roll out new mainline tubing next spring for my drip system/field crops. Some of the holes are fat and leaky so I will start fresh with new mainline and holes. I have 1/2 inch and 1/2 inch ends and fittings for the mainline. Is it worth getting 3/4 inch to increase flow? I would have to buy new ends and t fittings and so on but only a few.

Thank you for reporting this comment. Undo


The 3/4" will decrease loss of pressure by providing a larger volume with the new pipe. It will give you more consistent pressure across the entire lateral by giving more available pressure from the increased volume that the system can use before being restricted. This restriction is caused by the cumulative pressure loss from each orifice ( too many holes). I don't know how the orifices became fat and leaky (chewing insects/rats/squirrels etc?) but the larger pipe would help with the pressure loss with this problem as well. Your flow is dictated by the number of holes and their diameter for your particular system pressure. So a larger pipe diameter does not necessarily mean more flow in the pipe. Hope this makes sense Aloha

    Bookmark   October 31, 2013 at 7:05PM
Sign Up to comment
More Discussions
Irritrol RD900 Solenoid Chatter
Hi, I am trying to diagnose a problem with my sprinkler...
Help/Ideas for 12v watering system
I have an old well the is 4 foot around. It is 10ft...
Reusing old well for water needs
I'm building a house and need some advice on how to...
Help with tricky (at least for me) water access
Hi, I have an issue that I'll be having to deal with...
roots in pipe
Hi, I am new to this forum. I live in Idaho and we...
Sponsored Products
Juno 6" Line Voltage White Baffle Sloped Recessed Light Trim
$38.99 | Lamps Plus
nuLOOM Handmade Braided Cable White New Zealand Wool Rug (8' x 10')
Concord Dark Brass Three-Light Outdoor Pendant with Clear Glass
$556.50 | Bellacor
12" Dragonfly Tube Bird Feeder
Signature Hardware
Area Rug: Southern Magnolia Black 3' 3" x 5' 3"
Home Depot
Luceplan | Strip Wall/Ceiling Light D22/3
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™