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The last 6 posts

Sunday, February 29th 2004, 8:15am

by Rays Sprinklers

you are better off runnign all 1"

Tuesday, February 10th 2004, 7:35pm

by HooKooDooKu

Based on the pressure charts I have, a 50' run of 3/4" copper will lose about about 3psi of pressure while a 1" copper will lose about 0.75psi (assuming a flow rate of about 7gpm).

Saturday, January 10th 2004, 11:58am

by Tom

Use a 1" feed

Saturday, January 10th 2004, 11:58am

by Tom

Use a 1" feed

Friday, January 9th 2004, 1:15pm

by Rays Sprinklers

you can use 3/4" to the valve and then 1" sprinkler lines...... or you can do all 1" your far as unions you can run them off copper pipe.

Friday, January 9th 2004, 2:31am

by paterjb

1" or 3/4 " copper feed to RPZ

Is there much difference in a 1" copper feed from the meter, or a 3/4 in feed to the RPZ valve? Run is ~ 50 feet in the crawl space to outside RPZ,with 4- 45 degree and 2-90 degree copper fittings. Also, can I use galvanized unions for the RPZ valve, off of copper pipe? As mentioned pefore, I have 38-40 psi before RPZ valve.