House painting is important for many reasons. Obviously, a good paint job beautifies and adds character and personality to your home. Just for that reason it’s important to take sufficient time planning which colors, shades, and paint styles you want to decorate your home with. But paint also serves as one of your home’s primary lines of defense against weather, insects and other damage, so it’s an important aspect of home maintenance to keep up on as well.
Oh, where to begin? Let me start with 'watered down paint'. 25-50% before the material gets to the site? Impossible. You would basically be painting with water at that point. It would be less of a hassle, and cost, to simply use proper material. You would be forced to apply three coats instead of two, as the coverage would be horrible. Whatever cost you think might be saved in materials would be lost in labor.
Being in the business for 25+ years I have had the privilege of working with thousands of clients. Although they all came from different circumstances and backgrounds they all had one common goal in mind. Every one of them wanted to be respected, receive top value for their money, and get the best possible paint job for their most prized possession, their house!