I have a 2 year old home with well and septic. This is my first well/septic system. The water pressure has been great until the last couple days. The pressure has begun to cycle with a steady drop for about 10 seconds and then go back to full pressure, drop down, then back up, the entire time the water is running. Is this a sign that my water pump is going bad? Or is this an easy fix? I assumed pumps would last longer than a couple years. If you have any ideas or advice, I'd appreciate it. Thanks, Debbie