Delta Faucet Company recommends a water pressure between 20 and 80 pounds per square inch (psi) for optimal performance. This range ensures that the faucets function efficiently while providing a strong and steady flow of water. When the water pressure is too low, users may notice inadequate water flow, which can impact the overall experience of using the faucet. Conversely, excessively high water pressure may result in leaks or damage to the faucet and plumbing fixtures. It is important for homeowners to consider pressure regulation, especially if their water supply system has fluctuations in pressure. If someone is unsure about the water pressure in their home, they can use a pressure gauge to measure it. This information can be found on the current web page, providing further guidance on how to achieve the best performance from Delta faucets.