My Hotsprings spas left rear pair of rotating jets have lost water pressure. All the other jets are fine....any suggestions. I've already changed filters and removed the jets for inspection and cleaning..no pressure with the jets out completely.....I did empty the spa for pump replacement a few weeks ago....is air in the lines possble?? I was thinking of making up a plug/fitting to install in place of the jet and put air pressure to it and see if the line is plugged somewhere.....Any help/advice?

Having had to have a pump replaced just this past year on ours - you may have an air lock. We don't have a Hot Springs - but check your control panel and see if it shows an air lock condition. Some panels do some don't.

Can you get the outside panels off and check the hoses? If it is clogged - be careful with the air you don't want to split the hoses - what PITA to rerun those things.

Also if it is clogged you may be able to get it unclogged by trying to circulate a jet cleaner solution. I use Leisure Time jet cleaner when I drain and refill stuff does well