Toto Promenade is the only high version with round bowl, so it will fit in the same tight space as the poor-flushing Wellworth it will replace. So the only choice left is 1.28 gpf or 1.6 gpf?
There is no rebate in my area for going with 1.28 flush. There are only two users, so the extra water use of 1.6gpf would amount to about 2 gal per day.
Since the bowl and tank are the same for both flush rates, it seems to me that the 1.6 version, running 25% more water through the same trap way, should be less likely to clog than the 1.28. Toto spokesman's answer to my question was, "We designed our 1.28 gpf toilets to perform as good or better than a 1.6 gpf." If he's right, then it's better to save the 2 gal per day.
What say you?
There is no rebate in my area for going with 1.28 flush. There are only two users, so the extra water use of 1.6gpf would amount to about 2 gal per day.
Since the bowl and tank are the same for both flush rates, it seems to me that the 1.6 version, running 25% more water through the same trap way, should be less likely to clog than the 1.28. Toto spokesman's answer to my question was, "We designed our 1.28 gpf toilets to perform as good or better than a 1.6 gpf." If he's right, then it's better to save the 2 gal per day.
What say you?