Polaris 380 Suddenly Tail Not Moving and Slow


Well-known member
May 27, 2016
Berkeley Heights, NJ
1. Checked the hose filter - OK, clean
2. Disassembled and nothing clogged
3. Belts tight and no issues
4. The water pressure from the "jet tail / swivel" seemed to have dropped

I did have the booster pump run dry (accidentally and main pump was not running) for 2 hours one day, and thinking that may cause "something" - although when I did a quick research, running dry should not impact much but I could be wrong :) Any thoughts?


LifeTime Supporter
Jul 24, 2007
Suwanee, GA
Have you checked the entire hose length for leaks? How many wheel rotations/min are you seeing?

Surefire way to check for pump issues is to check the pressure at the end of the hose with a pressure gauge.

I'd be a hack, but you can try to put a larger diameter restrictor plate behind the socket, but then you are only circumventing whatever problem you do have.


Bronze Supporter
Sep 1, 2011
North Texas
I know you said disassembled, but I once had a leaf get up into the vane/turbine areathat I couldn't see until I pulled the vanes out. Every time I took the cover off, it would just fall under the wheel out of sight. Also check the little internal hoses, make sure none of those is cracked or has come off.