Possible Cause: Too much media
Overfilling the cabinet with media can cause the action of the sandblast system to unevenly blast. Try to remove some media from the cabinet and try again.
Possible Cause: Moisture Present in Airline
Moisture in the airline can decrease the airflow and if moisture meets media performance is extremely hindered. If you detect or suspect moisture in your airline, it is easy to install a moisture separator inline to keep things dry. We have many options available for helping with moisture in the airline.
Possible Cause: Pickup Tube Covered
Specifically for siphon fed cabinets, the pickup tube in the bottom of the cabinet is critical. If the top of the tube is covered with media, proper airflow in the sandblast system will suffer. This leads to poor blast performance at the sandblast nozzle.
Possible Cause: Too Much Air
Too much air is another possible cause. Higher pressure does not equal better blasting. Adjust the pressure in the system between 70-90 PSI and adjust as needed up or down to achieve desired results. Too much air can cause the siphon process inside the sandblast gun to improperly operate.