I looked for a post on repacking an "BCA" float 18 air bag and did not see one . Is there any special way to put the air bag back in or do you just stuff it in and make it fit ? We have 4 of them and one cylindar was low on air and never needing to deploy one ( thank God) , we deployed it so that we knew what to expect - now , how do we put it back in ? Thank you.