PSI stands for Pounds per Square Inch of pressure. The standard PSI for a home in Coppell is 35 PSI to 80 PSI. If your pressure is low, it can be caused by many things. Simple problems like the shut-off valve being closed or a faucet being blocked can cause low water pressure. More serious issues like plumbing blockages or water leaks decrease water pressure, too.
If your pressure is high, it can cause leaks, pipe damage, and wasted water. A Pressure Reducing Valve is needed at your water meter if the PSI is 80 or higher.