We live on a farm and the main water pipe comes down a long driveway and then splits off two ways - 1) to the main farmhouse, which then feeds a pressure washing bay on one of the other units and 2) to the other units, including a small commercial kitchen, and another pressure washing bay. In the main farmhouse, we've had issues with a knocking sound under the kitchen sink which I believe is something to do with the machinery used in the small commercial kitchen (they make natural juices from fruit). Then I started seeing the kitchen mixer tap (cold) dripping when using the outdoor tap or whilst running a bath. Now the kitchen mixer tap is dripping for most of the day (I think the dripping is linked with when the other units are using water), so I wonder if it's related to pressure and what would be the best action to resolve it. Thanks!