I posted this in Forums as well, but it's frustrating me so much that it's worthwhile putting it in writing here too!
We've lived in this house for 3 years without any discoloured well water. Suddenly this winter we've had brown water appear twice. The first time seemed to flush through easily enough (several repeat flushes of both toilets seemed to clear it all up). This time (tonight) it's not flushing through and appears to be getting worse.
The water has a silty