Hi, I'm Gina and I am a Moderator for this topic. I sent your requested professional, Phil, a message to follow up with you here, when they are back online.
If I can help further, please let me know. Thank you for your continued patience.
Hello again Karen, Thanks for asking for me!Seal it by removing the cover, cleaning the entire area well with soap and water, let it dry out completely, then buy 6 or 8 'wax rings' used to seal a toilet to the plumbing, scrape the wax out with a spoon and smear an 1/8" thick coating around the seating area, not so much that it squeezes into the tank though.. then replace the cover. and push some more wax into the crack around the edges. You can overlay that with 4 inch wide strips of saran wrap if you wantLet me know what you think of that. we keep going as necessary.Phil.