Dang, y'all are old. I ain't but 57 
I did get a knee replacement when I was 50, though. Titanium is excellent! I've started doing squats while I hold the hose to empty or add back water during water changes. I used to gain a bunch of weight- work out like a fiend and work it off. Last 20 years, it's been more up than down. I'm doing a lot more to keep it down, though, and hope that my joints will hold up (my other knee was on the same path as my right one, but I think it got scared when the other got replaced and got its act together).
I don't see having more than 3 tanks at any point in the future unless we win the lottery and decide to move. Mine are high enough to get into, although I have to wear those headbands with lights on them to see stuff sometimes and getting at my CO2 under the big tank is not that easy. First world problems...
I did get a knee replacement when I was 50, though. Titanium is excellent! I've started doing squats while I hold the hose to empty or add back water during water changes. I used to gain a bunch of weight- work out like a fiend and work it off. Last 20 years, it's been more up than down. I'm doing a lot more to keep it down, though, and hope that my joints will hold up (my other knee was on the same path as my right one, but I think it got scared when the other got replaced and got its act together). I don't see having more than 3 tanks at any point in the future unless we win the lottery and decide to move. Mine are high enough to get into, although I have to wear those headbands with lights on them to see stuff sometimes and getting at my CO2 under the big tank is not that easy. First world problems...
