With downspouts and leader lines can I drop from 4 inch to 3 inch?

jruvolo Posts: 1, Reputation: 1

New Member

Jun 24, 2011, 03:27 PM

With downspouts and leader lines can I drop from 4 inch to 3 inch?

Can I drop from 4 inch sdr 35 to 3 inch pvc?

ma0641 Posts: 15,675, Reputation: 1012

Uber Member

Jun 25, 2011, 07:25 PM

Sure but you will have less total flow available and 3" tend to clog more because twigs and branches get caught easier. If you kee them clean you should be OK.

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