The old knob on the side entry door has been sticking so I decided to replace it with a lever style doorknob, which would make it easier for my wife to open the door when she's carrying seed trays from the grow table in the laundry room to the greenhouse. So I picked up a Schlage lever style unit at Home Depot yesterday evening and replaced the old one with it. Easy job, four screws, took very little time.
When it was installed, I noticed a major flaw in the design. When the door is locked, you can open it from the inside just by depressing the inside lever, no need to fiddle with the inner lock/unlock switch on the inside. However, the door still stays locked! So if you depress the lever, walk outside and shut the door behind you, you're locked out.
The simple solution, of course, is to be sure to unlock the door from the inside before going out, but I can see that if someone is in a hurry or preoccupied with other thoughts they could easily forget. Seems like a bad design to me; they should have made it so that depressing the inside lever unlocks the door. I'm going to return this one and look for one that takes manual unlocking before it opens.
Paul