mine is pvc to the cooler out via a hose to a ' y' and hoses from there to the two outlets ,... ck out BRS for weird plumbing fittings , doesn't seem to be nothing that can't be taken care of easily , you might even talk to one of the brs guys if you run into a snag , I'm sure you're not the first person to talk to them about it
Frustrating, but so close!