I know this is a bit off topic but I wonder if anybody here has any experience with float switches This is the type we are using and it works perfectly 99% of the time but if the water gets any contaminant in it (like dust off the house roof it becomes unreliable, it won't turn on or it won't turn off Obviously a bit of contaminant gets on the shaft and the magnets in the floats can't activate the reed switches. Any thoughts?
