As a follow-up, been using the aft head with great success. One bonus that I did not realize at the time, but I have a larger or higher than before loop in the new hose just before it connects to the joker valve. Before, when flushed, no water was left in the bowl for the next use. Even when prepping the toilet for use, the old lower loop hose would not leave water in the bowl for use. Now, the bowl has a nice quantity of water remaining. Apparently the higher loop prevents flush water from completely emptying the bowl. Joker valve is supposed to help there, but they stopped making them to fit our model toilet many years ago. They do make a conversion kit that has a new joker valve for big bucks, but will wait until this one stops working. Until then, sail on.