Now where to drain trans cooler line?

Previously had log-style manifolds ('82/330/TRS/raw-water cooling, thru-hull exhaust) and just purchased a set of center-rise manifolds (GLM from MoorePerformance...quality seems high). My transmission (MercTransII) has one cooling line (in) from the oil cooler and one line out (connected to small pipe fitting on starboard riser). New risers do not have this provision. Where can I send the cooling water flow from the trans? I believe I can "t" into the main riser water fitting, but not sure if that's OK.

Many thanks in advance,

D. Ocean
Pompano Beach, FLA

[marinetrans]

Put a water dump out the transom or side of boat.Just did a Magnum Marine over, used Stainless Marine manifolds and sent the cooling water for the MercTrans. out thru water dump in the side of the boat. It looks cool too.

That'll work. I've got an extra hole....in my boat.

D. Ocean
Pompano Beach, FLA