Boracare is too thick of a product to attempt to be applied with equipment like the B&G Portable Aerosol System PAS Standard 9 in. Wand 1629 It should be painted or sprayed directly onto wood using a pump or backpack sprayer only.
B&G Portable Aerosol System PAS Standard 9 in. Wand 1629 should not be used to apply Pyrocide 100 or Pyrocide 300. They should be applied in ULV foggers, Thermal foggers, Propane foggers only.
We would advise to call B&G direclty to troubleshoot your B&G Portable Aerosol System PAS Standard 9 in. Wand 1629 and make sure there is nothing wrong with the unit. They will also be able to tell you what products would work best. It will also vary depending on where and what you are treating for.
For basic troubleshooting tips, refer to the B&G Portable Aerosol System PAS Manual. B&G can be reached at (800) 544-8811.