When installing, be sure to choose a special angle valve, and the angle valve must be fixed with the hot and cold water pipe of the wall outlet. When you find a distance between the angle valve and the water pipe on the faucet, use an extension tube to connect. Remember, you must not use other water pipes to connect, because if the water pressure is too large, it will easily fall off and leak, causing damage to you. If the inlet pipe is too long to exceed the outlet pipe, you can cut off the part according to your needs. If the angle is not suitable, bend it to the position you need as needed. Remember: Do not bend hard to 90 degrees or more than 90 degrees. When installing the basin to remove water, please don't forget to buy the small interface of the faucet (the faucet is shorted). Don't forget to flush the water pipes buried in the wall before you install it.