Welcome to our forum.
Hmmm, I wonder how many peopele who've had the spa for awhile would sell the waterfall in their spa for $150 if they could?
The one benefit we found was that during the super hot summer our tub did gain temp., to cool it back down we removed the cover and turned the jets and waterfall on full. That worked very well to bring the temp. back down in a relatively short time period to our prefered soak temp.