Conshelfs were my first foray into owning my own gear. I learned on a rental Brut. I scoured the 'net until I found a model that was touted as long lasting and easy to rebuild(the Conshelf XIV). I scored a couple of operational XIVs from Canada for a little less than $50. I rebuilt one; the other is awaiting a parts kit and some time. Then I got an operational XI. Cleaned the 2nd and flipped the lp seat. It works like a charm. I use it for pool time. Then, I have another XI to rebuild, next to the XIV

And a small pile of various US Divers metal 2nds. I like the early type, with the screw on exhaust tee, personally. I've split too many damned "pop on" tees.
And now you might also guess why I am partial to reusing as much of the Conshelf series in my doublehose designs. I have plenty to test on!
Also, I have an old Calypso 1st stage. Not sure which model, but it has 1 hp, 1 lp port and no J valve. I think it needs a rebuild. If someone needs one, let me know. The wife is happier when the gear is going out of the door, instead of the other way
