How about some tips regarding plumbing? This is something that you will always be able to use for the rest of your life. You owe it to yourself and your family to take a few minutes and read this article in order to get the best advice on plumbing.
Do not try to sell a product that you do not agree with. This includes paying attention to the company itself and their values and policies. If you have any qualms about the company, your customers will pick up on it. You want to be a full supporter of the product you are selling
If you have issues with the plumbing making a hammering sound when you turn it off, check your water pressure. Any time your water pressure is above 80 PS