Well, I picked up a Hydroright at Home Depot today. It was a little less than Costco: about $17.98. My local Costco didn't have them, and I didn't feel like driving another 10 miles to the one where I *think* they still have them (and where I first saw them a few months back).
Now, I recall the other reason why I'm not in a big hurry to retrofit the original 41 toilet: the shut-off valve is a bit frozen and won't shut off the water completely. So I need to get in there and replace the shutoff valve - after I figure out what connection it needs (it's probably rigid copper right now, which might be ok, but probably I should "upgrade" it to some sort of flex line. All this will probably take half a day so I'll put it off until I have attended to more urgent matters (like taking care of the grounds).
Now, I recall the other reason why I'm not in a big hurry to retrofit the original 41 toilet: the shut-off valve is a bit frozen and won't shut off the water completely. So I need to get in there and replace the shutoff valve - after I figure out what connection it needs (it's probably rigid copper right now, which might be ok, but probably I should "upgrade" it to some sort of flex line. All this will probably take half a day so I'll put it off until I have attended to more urgent matters (like taking care of the grounds).