1. Check installation guide for sizing blower. The number of water jets should match the size of the blower – not enough jets will cause blower to overheat.
  2. Check to see that the water jets are assembled correctly and that all the jets are in the open position.
  3. Make sure the check valve is in the correct orientation (the arrow on check valve should be pointing away from blower).
  4. Run the blower only with the water pump off. If the blower runs for 30 minutes or more, then the blower is functioning correctly. At this point, it could be that the water pump is forcing water back into the air line. Try increasing the openings (larger eyeballs) on the water jets to reduce the water pressure.