I have a Polaris 280 running off of booster pump connected to a dedicated return line. It splits off right before my SWG manifold/cell.
Last year, it became increasingly more difficult to connect AND disconnect the quick disconnect to the wall fitting. (Even with the main pump turned off) All here with similar connections are familiar with this insertion. You press the QD into the wall fitting far enough to engage the two little pins, which then lock into place after twisting the QD clockwise. Removal is the opposite, press in, and twist counterclockwise.
Towards the end of last year, it was almost impossible for us to make the connection. In the rush to "do something," I had the "not-so-bright-in-hindsite" idea of lubing the QD's o-ring with some Magic Lube. Bad idea. Although the first 2 or 3 connections/disconnections were amazingly smooth, the interface began to gum up after several uses.
Now, at the start of this year, both the QD's o-ring and the interior of the wall fitting have a tacky, sticky, gummy feel to them.
Based on experience with the above, treating with additional Magic Lube may help immediately, but not in the long term.
Does anyone have any advice on how to restore the interface to near-new conditions?