'63 Safari blackwater dump adapter
A complete novice speaking. My ’63 Safari has a blackwater dump outlet, brass I believe, of the type shown in the photo, with four flanges (The photo is borrowed from an earlier post by GT1963, thanks, but mine’s the same). My question is, what fits that flanged outlet pipe? I don’t have anything that fits it, and my local RV parts man is stumped. I want to hook it to a Thetford SmartTote external tank on wheels. So far I’ve tried a Valterra Universal Adapter but sorry, no fit (so much for Universal!). Somebody out there must know.