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Saturday, January 26th 2019, 5:17pm

Backflow Size

I will be installing irrigation on my front lawn and not sure which backflow Preventer Vacuum Breaker to purchase. My cooper main line in basement is 3/4. I have read that the main line should be larger then the latteral lines. Should I purchase a 3/4 Febco breaker and use a pvc sch. 40 3/4 to 1/2 fitting to run sch. 40 to valve box?
Thanks in advance.

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