Quote:
Originally Posted by Bill14564
I was concerned about seals and impellers drying out so I left mine filled with the daily filter cycle still active. With the cover closed and no people getting into the tub, the chlorine level dropped but the rest of the levels were pretty stable. A little chlorine when I returned and it was good to go.
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I would leave it filled. It would prevent drying out of seals, etc. Many spas today are salt, as are pools. With salt, I would think you wouldn't have to add any extra, especially if no one was using it for 4-6 months. You would shout the heater off, and just run it on its daily maintenance cycle.