The HandyGuys did a podcast on these a while ago. You can probably
access it at their website.
If you are one of those who feels if it doesn't pay back quickly it's
not worth doing then don't bother....it will never pay back if you
have city water. Especially if you already have low-flush toilets.
If you see benefit in reducing water use even if it doesn't save you
money directly, then go for it. And if you are on well/septic, then
it reduces the load on both of those.
I plan to install these when my existing flush valves need to be
I bought one of them. Installation was simple. But the problem is that
the toilet wasn't designed for low flow, so about 1/3 of the time,we have
to use full flush, or repeat the low flush. In my case it was a waste of
money (which is what I'm good at), although it saves some water when it
In the house there are 4 bathrooms and only main one has Toto toilet
which does a good job. I am good at wasting time and money some times,
LOL. I am going to try one since one flapper needs a replacement.
We(two of us) consume about 20 tons of water a month.
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