Be aware that reducing the amount of water in a toilet cistern could cause a blocked sewer and cost you the charges of a plumber to unblock the drain. This happened to my wife and I when, unknown to us, the minimal amount of water we were using to flush the toilet was not sufficient to move toilet paper all the way along the sewerage pipes on our property to the municipal sewer connection resulting in a build up of toilet paper and a blocked drain.
It is important therefore to make sure that you have sufficient water in your toilet cistern to do a proper job of flushing.
