The most common issue with abrasive not coming out of the hose is a clogged nozzle. If debris gets down into your machine and sucked up through the hose it can clog the back of your nozzle. If you use IKONICS’ equipment, all of our hoses have a quick connect to remove the hose from the nozzle effortlessly. Once you disengage the teeth with the quick connect, pull out the hose and look through the back side of the nozzle to see if any debris is clogged inside. If the nozzle appears to be clogged, take a paperclip and clean out the nozzle.
-Wes Baron, IKONICS Imaging