I have 2 Jandy Laminar Deck jets as well as a bubble that were installed in my new pool about 10 months ago. The jets worked for awhile and then about 4 months ago one of the jets barely shot out anything and they other just produces a little stream. checked the filters, they are fine. I have a Jandy 1.65 variable speed pump for just the jets and bubbler seems to be working fine as the bubbler can produce a large spray. Any idea on how to start troubleshooting?