This video tutorial is in the Home & Garden category which will show you how to save money & water with your toilet flush. The first step is to turn the water off. Then remove the lid of the tank, disconnect the bowl refill supply and make sure that the overflow pipe is open. The next step is to take the new sink, attach it to the water supply point, place the drain in the overflow pipe and position the sink over the flush tank. The modification is done. Now turn on the water supply and your sink is ready for use. It's that simple.