The new design toilets are made in such a way that it can flush the water as per your requirements. The new toilet is design with 1.6 gallons of water flushing capacity. It is necessary to clean the bowl properly with using the one flush.
I think federal government has release the new guidelines for the toilet to install the flush with 1.6 gallons of water per flush. If you need more water to clean the flush than it is essential to install the pressurize water tank in the toilet so that you will get more water to clean the bowl.
It is ideal to install the pressurized tank to remove the waste from the bowl and clean it properly despite making two or three attempt. It is one of the important clean the toilet properly by using the proper techniques. The 1.6 gallons per flush is not adequate for user to clean the bowl. It is essential to set the pressurized tank to remove the waste from the toilet.