Welcome! If you clicked on this page you have an AIRVAC vacuum sewer system. This system is unlike a traditional septic system that uses gravity and has no pressure in the pipes. Your AIRVAC system keeps negative pressure in the pipes outside your house which when your house’s holding tank fills up the vacuum is activated and that is when you need your air inlet, The Dirty Bird! Yes now in just a couple of minutes you can install the approved Dirty Bird over your existing “Candy Cane” inlet pipe. This means you will never have to look at that ugly pipe again, without jeopardizing the performance of your AIRVAC vacuum sewer system. Please if you have any questions email or call us. We would be happy to help you turn that eye soar into a focal point!