vacuum heater control box PSA

mopowers said

That's interesting. Thanks! The issue I've had is the fact the rubber vacuum "diverter" part on the vaccum side leaks. I've found that adding another spring to put more pressure on the rubber diverter thing along with some lube helps quite a bit. Do you have any tips for achieving a better seal???

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I don't know this thing too in and out (I couldn't get it working correctly for instance haha) but I did super glue around the edges of that part on reassembly. I know what you mean though that the rubber thing isn't applying enough pressure. Maybe that part would be resolved by a newer unit because the rubber would be softer?