Shop Products
Houzz Logo Print
zazing_gw

Irrigation system: can I run 3/4 inch PVC pipe from 1/2 inch pipe

Zazing
11 years ago

I have a garden faucet on a 1/2" pipe, from which I plan to run PVC pipe to 2 Rain Bird 3500 sprinklers at 20 and 60 feet away (and are down grade slightly from the garden faucet). I am thinking of 3 options for pipe size: (1) 3/4" pipe for everything, (2) 3/4" for the first 20 feet, then split to 1/2" pipe to each sprinkler, or (3) 1/2" pipe for everything. Assuming "very good" water pressure, would #1 or #2 work? Or would I probably lose pressure by going from 1/2 to 3/4"? I'm thinking that the 3/4" pipe will compensate for friction loss with 60 feet and volume supplying 2 sprinklers.

I do know I should get a water pressure gauge and design this from charts, but I'm on a small budget, it's only 2 sprinklers, and I want to avoid increasing the copper line from 1/2 to 3/4 (the main off my water meter is 3/4). Thanks in advance.

Comments (4)

Sponsored
Sue Pike/Closet Factory - Richmond, Virginia
Average rating: 5 out of 5 stars84 Reviews
Richmond's Distinctive Closet Designer | 10x Best of Houzz Winner