I am new to the forum. Over the last couple of weeks, I am noticing a dramatic decrease in my water pressure when another source is used. If someone turns on a faucet or flushes the toilet while the shower is running, I get a dramatic decrease in the flow. It slows to almost a trickle. This will last for several minutes even after the other source is turned off.
This same pressure happens to the sinks. If the dishwasher is on, the kitchen sink pressure goes.
This is a new development and I am not sure what it could be. Can anyone help with some suggestions?