Originally Posted by Tom.B
I am not sure what I need to be doing to the water to stop spotting. What kind of filter element do I even need?
Even the money-is-no-object large yacht crowd use a simple (but horrifically overpriced) WetSpot portable unit.
They are just ordinary water softeners cased in a PVC pipe and there are many portable water softeners
that will perform exactly the same job for a quarter of the price. The chemistry is the same for every one of them, only the housing is different.
FF will probably chime in with something about RV versions but you can find them on Ebay and elsewhere for a couple of hundred dollars. There isn't any other way to stop the spotting unless you have a crew prepared to burn through a few dozen real chamois a year.