Used Pressure Cookers:
Not really recommended. They're prone to metal fatigue (due to holding high-pressure steam in), and gaskets and parts for some brands can be hard to come by.
If you are determined to use an oldie, make sure of the following:
1- You need a new,
factory gasket.
2- Whatever overpressure gizmo is used needs to be new from a factory parts source, too.
3- The pressure gauge needs to be in perfect working order or new, too.
4- The body of the cooker needs to be free of pitting, which weakens the cooker (that holding in pressure thing again).
- If your county extension service offers it, having the thing pressure-tested is an excellent idea. I've heard that Presto will perform this service for a fee, but have no further information.
Presto and Mirro parts are still available without too much trouble. Many Sears cookers were rebranded Prestos, so it may be that your Maid of Honor unit will have parts crossover to Presto (Sears being Sears, your unit might also have been made by someone else; Sears had almost no loyalty to suppliers). Many other brands have no parts availability any more.
Whatever you do,
DO NOT substitute parts between brands (unless you're certain that the company you're getting parts from actually made the cooker in question), and do not attempt to make parts.
Here is a page with info about all this, and more besides.
www.missvickie.com is the most comprehensive pressure cooker resource on the Internet.
MissVickie.com is a website sharing pressure cooker tips. The blog covers pressure cooking recipe, pressure cooker reviews and anything about pressure cooking.
www.missvickie.com