Yes after 98 they changed. I want to stay away from adding the thermostat by-pass line from the pump to the head. I am thinking that I can get some brass 3/8 reducers to get me down small enough to mount the brass out let from the '98. Either that or cap off the by pass out let altogether and install the other out let for the tank in the line somewhere. I am thinking of Mcguyvering a way to mount the 98 small water line brass into the '02 bypass outlet. Might work.
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