I have a Riva power cooler & is set up water inlet @ top,outlet @ bottom.
But a "general" opinion is developing to "reverse" that configuration & introduce the incomming water to the bottom fitting so as to push/purge any air thats trapped, out of powercooler.Would there be any adverse/negitive effects in doing so?
Thanks
J.D.

You can switch them. There's enough pressure in the system that you don't have to worry about air being trapped in the intercooler.