We have an appollo system, in our attic with a 50 gallon water tank with it. Our plumber was here doing some work to our well tank and noticed that our hot water is "red" really just a rusty color. He alarmed me, said this is sediment and that my family isnt safe. He said that our appollo system is causing the problem and it needs to be changed out immediately. Can this be true? I have small children.