To sharpen a knife using a whetstone, submerge the stone in water for approximately ten minutes. When the stone absorbs the proper amount of water you will no longer see air bubbles floating to the top of the water. Place the whetstone on a flat, stable, slip-resistant surface coarse side facing up. Move the blade back and forth across the stone several times, tip to heel, at the correct angle for your knife. While sharpening, it is important to continuously pour water on the whetstone. Small particles release from the whetstone and form an abrasive substance when in contact with water. Repeat on the other side of the blade. Once this is complete, flip the stone over to the fine side and repeat the process. The fine side will take off any leftover steel. Finally, rinse the knives off in hot water.
Water stones can also be made out of natural or synthetic materials and they are fast becoming the most popular type of whetstone as they only require the use of water to lubricate the stone. They are not as messy to work with as an oil stone and deliver fast sharpening results but for even better results, soak the stone in water for 5 or 10 minutes.
"Sharpening is like a hangover cure," says Laurie Timpson, founder of Savernake Knives in Wiltshire. "If there was a cure and you knew about it, I'd stay at your house, crash on your sofa and have whatever it was when I woke up. Everyone would have it and there'd be no discussion. Everybody says they've created a perfect sharpening technique, and they haven't." 
I did a lot of research and bought this along with a diamond flat stone... and the henckles steel. The sharpest I got my knife (using a microscope to see the edge at 1000x) was using the diamonds stone up to 1000 grit, then straighten it with the steel, then use this stone to basically polish the knife. You are basically making the very very edge smooth and what this does is makes your blade last much longer before it needs sharpening. The edge of a knife looks like a hacksaw under a microscope so just picture making the teeth smaller. I will tell you if you use your knife on anything hard you just need a steel to realign the edge. You can do that about 5-10x before you need to sharpen it again. I learned a lot using a microscope to see the edge.