An audiovisual septic alarm without the need for an electrician was the inspiration for Mark Hayes, founder and owner of Minnesota Geotechnical Services when developing the solar powered Nomad Tank Alarm.For most areas across the U.S., holding tanks positioned near lakes or waterways are legally required to have an alarm to signal failure. “A homeowner may want an audio alarm, but to do that requires electrical hookup to the tank,” Hayes says. “This can either be extremely expensive or impossible, depending on the lot dynamics.”After extensive research and development, the final product runs on a rechargeable 9-volt battery powered by













