After a thorough inspection of the offending pump I believe it is time to spend the $$ and get the pump replaced. It appears that someone has been in the pump before doing a homemade repair on the some stripped threads.
The pump seal is leaking. I cannot see how to separate the end piece to replace the o-ring. I have no record of when they were overhauled last.
Time to get them fixed and move on to the next items.
Dave
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