Apologies for this late follow up. I discovered that when I opened the fill cap on the port side, the tanks would *slowly* equalize. I blew out the vents on both sides, but this did not seem to improve anything. At least I now can get the water distributed and then shut off a tank when full.
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
