["We're not training commercial pilots."]

3 hours ago, ARAMP1 said:

I've never owned an aquarium, so I can only presume that the water evaporates leaving the salt behind.

But in a swimming pool, rain water will dilute the salinity ...and after I drain the pool back down to the proper level, the salt is very often a few hundred PPM lower (I like keeping it around 3700-ish PPM).  And storms always bring with them diluted chlorine levels and a higher leaf and twig count that's always fun to fish out.  

ETA:  We're talking a heavy rain here...6-8 inches or so.  If it's only an inch or two of rain, it won't make a dent.

After reading the discussion about proper pool salination.  I can proudly say that I can't wait to become a "commercial" pilot.