Man---wife and I just got out of our month old Jacuzzi J325. I restarted the jets to add some shock oxidizer, and same thing. Jets come on for just a few seconds, stops, pulses on, stops..Didnt mean to hijack your thread, but it was literally first thing I saw after logging in. In my case, only 1 pump, and if I divert to the front seats it stops surging. Diverting to the back it surges, and center position surges. I shut off power at the breaker and restarted it, no change. Any suggestions would be appreciated..Sorry again Jay-maybe we can both get some help