Have you checked the screen on the water pump. Sometimes the screen gets clogged thus causing a problem. Also have you checked the screens on the faucets, they also could have become clogged. The toilet on the other hand I have no idea. You might also want to check your winterizing / dewinterizing values related to the water heater. They may not be in the correct position which could cause this kind of issure.
I have not checked the pump screen, but that's not the issue. If it was, water flow would be reduced more or less equally at all water outlets. Instead, water flows fine and strong from the shower, low point drains, outside rinse and ( sometime within the last two weeks since this started ) the bathroom sink.
There's still zero flow at the kitchen sink and the toilet.
The fact that the bathroom faucet has started working is making me think it's an issue with a check valve or something similar somewhere, like to keep water from flowing back out of the water heater into the cold water lines.
I guess I need to start thinking about tearing the floor out.
