Hi, Our Imperial Monarch Spa from Jacuzzi is exactly 10 years old and has given us relatively problem free use. It was last drained a few months ago and used a dozen times since. Last night when I was in it all the jets seemed to be working initially. After moving to another side after 10 minutes I noticed that one jet in the middle of one side was not working. I adjusted the jet nozzle in and out as well as turned on and off the jets switch for that side all to no avail. Than I went back to the other side and found all of the jets on that side no longer working. I repeated the procedure for those jets on that side with no luck. Any trouble shooting tips that you can share will be greatly appreciated.