Forget the pressurized tank stuff. There was a bunch of them put in
for water conservation, but there was a distressing failure rate. You
want an excellent flush, do what I did.
I've got my tank on a shelf over 2 feet above the commode. That's a
2" pipe fitting in the bottom of the tank, and I connected it to the
commode with one of those plumbing fittings that go into the inside
of the opening and as you tighten it, it presses its outer rubber ring
outwards to snug up.
No, I don't care about it being quiet, I want it to do its job quickly
and efficiently. And since I didn't need to use American Standard's
tank, I got one incredibly cheap for size and configuration (whoever
makes Tank 3412, in Mexico).
And I use a Korky Original flapper. Quick flick for yellow, longer for
brown.

On Mar 11, 3:02 am, Deke wrote:
Ebay is your friend.

The seller there ship the newer toilets at a cost less than you buy
it for at home depot.

Myself wants a tall model with a pressurized tank and huge pipes and
oversize seat.