I guess you know that they make a special grease. I don't know what Vaseline might do to your drinking water (can't imagine it will harm the plumbing.) It made all the difference when it came time to replace the filter. Lowe's carries these: The Waterproof grease is for static applications (grease the seal, assemble, and it sits.) The Silicone grease works for static AND dynamic applications (cartridge faucets that move & slide when you use them.) The manufacturer told me that the Waterproof version would wash off if you used it in a dynamic application. I have no idea why they make it, since the Silicone grease works everywhere and they cost the exact same amount...I did not think to ask.
Thanks, John, Will check on that, while ordering the wrench. Forget who told me about Vaseline, was a long time ago. Kind of like Grandma's recipes. lol