I have a PW Model 2 that has a pressure gauge on the tank. The plastic cover over the gauge readout has been damaged and needs repair. Being afraid to damage the gauge and/or threaded seal into the tank, I thought cutting a piece of plastic (flashlight lens spare?) to fit the lens area. Then, I could cut out the existing damaged plastic with a razor blade, put silicone glue under the lip of the metal part of the gauge, and slip the new piece of plastic in place. I would have to temporarily glue a stick or something to the replacement plastic piece in order to place it correctly. Turning the whole shebang upside down would hold the glued piece in place until set. I don't know if this gauge is removable and can thus be dismantled in order to get to the inside top cover to repair the damaged plastic window. Has anyone done this? If removing the gauge and accessing the plastic from the back side of the gauge cover isn't a big deal, I'd go that route. Any suggestions?