Keep running from Master Spas.
My first one (an LS850) had 7 leaks in it. They did come and replace it with a westbrook (much lower end spa, but more bells and whistles). But the quality in the product... isnt even low, its NOT THERE. It is the cheapest of everything.
These spas are so over priced... dont ever buy one. I will buy a shell and put my own parts in it... not have to deal with the CRAP quality next time.
Dont believe ANYTHING a spa salesman tells you. EVER.