Reverse osmosis and other under sink water filters usually come with an extra faucet. If you not already have an extra hole in your counter-top, here are some hints on how to achieve this.
If your counter is made from granite or something similarly hard, you will need a diamond core drill bit, a motor drill with variable speed, a suction ring or something similar to hold the coolant and water as coolant. It is important to drill very slowly to keep the temperature low.
Warning: A hammer drill is not the right tool for this job! Do not use it.
Here are the necessary steps:
- Start drilling with the diamond core bit and apply the proper pressure. Drill a just a few millimeters deep.
- Put the suction ring around the hole and fill it of water (few millimeters high).
- Start drilling again.
- Make sure it does not get too hot. Drill slowly and use water for cooling.
If you are more visual, watch the video to see how to do it.