How to install a Gamma Seal Lid the Easy Way

I finally got around to installing the Gamma Seal lid on a bucket(s). It wasn’t going well. I placed the ring on the bucket and hit the ring with a cloth covered small sledge hammer. For life of me, I couldn’t get the ring to attach!
YouTube to the rescue: https://www.youtube.com/watch?v=T_wiaEHAciw