problem accessing Alde expansion tank Tab 400

Tundra57

So been fitting heater next to cold water tank. All piping, bypass valves, etc. Ready to prime system. Couldn't get to inner two screws on cover. Too close to window frame. Had to buy special low profile driver and grind down the square screw drive bit. Took off panel and found tank clear bleed pipe trapped between cover and frame. With pipe pushed clear cover now pushes right in with plenty clearance. A slight manufacturer oops. At least the screw missed the pipe. 😁

Tundra57

Sorry should mention thanks for all the information @Tabaz