General Septic System Information	http://www.inspect-ny.com/septbook.htm
IOWWA (Iowa Onsite Waste Water Association)	http://www.iowwa.com
NOWRA (National Onsite Wastewater Recycling Association)	http://www.nowra.org
Iowa DNR	http://www.iowadnr.com/water/septic
EPA	http://cfpub.epa.gov/owm/septic
Consolidated Treatment Systems (Multi Flo)	http://www.consolidatedtreatment.com/multiflo.asp
Bio-Microbics (Fast)	http://www.biomicrobics.com
PT Aqua	http://www.premiertech.com/ecoflo/biofilter
Zoeller Pump Co.	http://www.zoeller.com/zcopump/zcohome.htm