Can I convert an existing toilet to high efficiency?

Question

Can I replace the flush valve with something that creates more pressure during flush, yet uses less water per flush?

Answer 1

no, but you can lower the water level so it uses the minimum to empty the bowl.
i don' t think a 3 gallon toilet will work with a 1.6 gal - flapper.... try
it, it's a $ 5.00 experiment. I'd lay down money that a 1.6 flapper wwon't work on a 5 gal toilet!

Answer 2

The way most people do this is to put either bricks or full water bottles in the tank. That way the toilet uses less water.

I like the 16 oz. water bottle (filled and closed) method best, because you can add subtract bottles so that you still clear the bowl effectively.

I don't know of any refit to a pressure-assist type toilet though.

Answer 3

ive used low-flow toilets before. They clog every single time. I have to flush it 4 or 5 times plus plunge it, etc. its a real hassle. if the normal toilets use 3-5 gpf, you are using just as much water plus your blood pressure stays lower. save your heart, dont mess with low-flows

Answer 4

Toilets are relatively cheap. I'd just replace it with a new, high efficiency one if that's what you want. Water savings will offset at least some of the cost.