Originally Posted by Paul S.
The hot water heater feeds the toilet indirectly. Search my posts on the Georgetown forum as I don't have time to explain right now.
Here's a post from Paul S:
Originally Posted by Paul S. View Post
What if your system is charged and then you disconnect it. Then you try to flush the toilet. With any pressure left in the system and 10 gallons of water in the heater I think the heater will back feed the cold side and push any sediment to the open valve. Does this make sense???
Another poster responded saying it might be "plausible."
Here's my take:
Unless the WH is very close to the toilet, there's bound to be several feet of hose between them. Water is essentially incompressible, so the volume of water required to back flow and drop the pressure is relatively small. I don't believe the cold water line is attached directly at the bottom of the WH tank. "Stuff" usually lays on the bottom of the tank, so I think it's unlikely (but certainly not impossible) for enough stuff to migrate far enough back into the cold water line to ultimately get to the toilet.
But if the OP thinks this might be part of the problem, drain and flush the WH, then flush out the line the toilet, and you should be OK.