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Old 08-28-2013, 02:19 AM
ac505 ac505 is offline
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Join Date: Jul 2013
Boat: 2000 Xstar
Location: UK
Posts: 113
Ball valves should not be used to throttle the flow, many reasons for this (google is your friend). If you change one ball valve to a gate valve (doesnt mattet if it is on thr flow or return) then you can use that to tune the flow.

Still keen to find out the diameter of the restrictive on the Y piece, can anybody help pls?
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