We have City Well water that is not filtered. After moving into our new home in 2003 we always had discoloration in our hot and cold water caused by iron and manganese in our well water. We had a whole house "big blue" filter with a 50/5 micron filter installed on the city water supply line.The filter eliminated the water discoloration.
Now we have a problem with sand or grit in all of our hot water lines, but not the cold. We replaced the water heater thinking that was the cause. No luck problem still exists. The house is built on a slab with pex in the concrete and a recirc line for the hot water. The plumber has been here numerous times but has no solutions or ideas of the cause of the sand/grit. Any ideas how to fix this problem or the cause?