I changed to a MM Standpipe
About 18 months ago, on my Tartan 27 I installed the MM standpipe---and wrapped it with fiberglass insulation tape, though I think theoretically I did not have to insulate it. I did so because of the proximity to the battery cables and the icebox. It rises in the 9" space between the forward cockpit bulkhead and the after cabin bulkhead, attaching to the forward side of the forward cockpit bulkhead.
New insulated SS 1.25" Schedule 40 pipe from McMaster leads from the exhaust manifold to the bottom of the standpipe, with cooling water entering the top. I do not think the boat originally had a standpipe, but it fits and operates beautifully.
Mary
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