Delaware North even claimed a trademark on the name “Yosemite National Park” for the purposes of merchandising.

While effective at reducing holding tank odors, formaldehyde also kills the beneficial bacteria used to digest human waste in septic systems. When too much formaldehyde-laden waste is dumped into septic systems, it can cause the septic systems to fail and potentially contaminate groundwater supplies.

4th of July travel is expected to hit an all-time high this year according to AAA.