Ok guys here are the numbers.
FC is 9.0 been cloudy and left to pump on for three days straight by accident usually 4.0
Ph is 7.4
Ta is 70
Ch is 480 to 520!!!
We have hard water obviously but the water has always tested in range. What's happening?
We have had a lot of rain as of late. Should I worry about he ch I tested it three times that is the low and high's of the tests. Steve