That's where that Eljer surprised me. For a $120 Toilet, and a low volume at that, I figured it'd be a real John Wayne unit (Wouldn't take much off of anyone). I'm still not used to the handle timing--hold for a couple of seconds until it gets going good, but I have only had to plunge it twice. I'm just leery of not enough flow to move solids down the pipe. Can't dig those up very well for quite a bit of the year, here...so I want to keep them clear.
I pump the tank every four years, whether it needs it or not... Conveniently remembered on every presidential election. Seems apropos. My inlet line won't plug. First it's on a fair pitch, and second, all the water drains, sink, washer, and etc provide plenty of volume.
The biggest problem with that pot is its newness... I don't quite get how it works, and all the old dudes don't get it any better than me. It worked for a while when I first got the dang thing, but it ain't worked right for four years.
The ONLY thing I have left to try is a hail mary... I think it relies on vacuum in the main (think venturi effect) to physically pull the load through - If it is sucking air at the floor seal... And that has recently become evident... Perhaps. So this time I will forego the fancy silicone seal that has been in there all along, and go back to wax.
If that don't work, I am gonna blow that dang thing up... Get me an industrial wall mounted jet-grinder and get it settled for all time.