Welcome to the bigboi Help Centre

Your Source for Expert Advice, Troubleshooting, and Product Information

WashR PRO | What is the recommended size of the office for the foam cannon?

To get thick, clingy foam and the best performance from your WashR PRO, we recommend using a 1.1mm to 1.2mm orifice in your foam cannon. This size helps maximise pressure and water flow, giving you that rich, shaving cream-style foam every detailer loves.

Still need help? If you’re unsure or need help finding the right orifice, reach out to our support team — we’ve got your back.

Updated on 13 Jun 2025