Originally Posted by bluewoo
This is it. I just removed hanger and was able to tighten it up more. Exit side has no gasket. Its like the two pieces are wedged together and need to be tighted more than the white hose.
That definitely is the -571 valve. The inlet side is where the screw on fitting is. The only seal there is a rubber gasket that seals as you screw it on...same type you'll see on a garden hose. If it's leaking there just tighten it (hand tighten only is all you need) or replace the rubber gasket.
Look on the outlet side hose connection and get rid of that black plastic clamp. It's junk and only used because it saves what I consider an insignificant amount of time to install at the factory. Use a pair of wire cutters and cut it off and deposit in the closest trash can. Put a standard hose clamp available at any hardware store around the white hose starting about ⅛ inch below the top end of the hose. Do that even if it is not leaking there because I assure you it is going to leak sooner or later.
If the leak is coming from where the 90° elbow fitting is screwed onto the valve, unscrew it and place a thin layer of teflon plumbing tape then screw it back on. That should take care of it.
If the leak is coming from anywhere else on the valve call B&B and they will send you a replacement at no charge.