Originally Posted by mr.ken
I do have a filter and all of this made it through. I just took the toilet apart and can't believe the amount of sand and Rick In there. I have a factory water filter and assumed that filtered tank and city water but maybe it just filters the tank water???
The whole house filter being used today filters all water whether it comes from the on-board tank or city water. Most of the calcium and junk you are seeing is coming from the water heater. Scale and deteriorated anode get pushed into the hot water system and pressure fluctuations like flushing the John can cause that crud to be sucked into the cold water pipes, eventually clogging small ports.
Had to rebuild my Thetford toilet recently due to a scale pellet clogging my flush valve. Repairing a Thetford Aqua Magic V
check out the pictures of the clogged valve.
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