In regards to the warranty, the parts have a 5 year warranty. The homeowners can contact Vortens directly for replacement parts at http://www.vortens.com/. They could also contact Southwest for replacement parts.  Contact information for Southwest is:

       Southwest Environmental

       Hien Le, Project Manager

       Preference is via email: hle"at"swe-inc.com

       (if phone is necessary: 800-307-5700 ext. 204)