and I can hear the noise as it works, but no foam. ----Here's a way to fix it: 1. Get a squeezable bottle with a long beak like a clean condiment Squeeze Bottles, add some water into it. 2. Remove the filter at the end of tube 3. Connect the bottle beak to the tube 4. Squeeze water into the tube , at the same time move hand to the sensor area to get water out. You'd better have someone by your side that could help you to pump water out. We accept the dropshipping/wholesale/customization. 1. Enough stock, factory Outlet . 2. Priority delivery, order processing within 48 hours . 3. Fast Logistics 15-25 days . 4. USA/CA /RU / ES / CZ /FR /PL have local warehouse. Faster delivery! 5. NOT include a receipt or an invoice. 6. If you need customization any LOGO or Other,please leave a message to us. (above 50PCS) Any questions, please feel free to contact us. Reply within 24 hours