The ancient sewers of Rome actually started out of a desire to keep topsoil rather than trying to dispose of waste. Farmers built underground channels to keep rainwater from washing the topsoil away. As the cities grew, and public latrines were invented, these evolved into a sewer system.
Did you know people will often pay $1 to $4 a gallon for bottled water based simply on the perception that it is healthier and cleaner than other water sources? Sadly, because of low industry standards, the quality of bottled water is at best an unknown.
Although both mechanisms rely on the energy of the sun, solar thermal collectors used for creating hot water and solar panels (photovoltaics, solar PV) are used for different purposes. While solar PV are used for generating electricity from solar energy, SWH converts sunlight into heat.
Is the area around your water heater free of clutter and debris? The experts recommend providing at least 18 inches of clear space around your water heater for good air flow and heat dissipation.
Whole house water heaters may reduce the water-heating portion of your utility bill by about 10% or 20%. Much like a traditional water heater, they are connected to the central plumbing and designed to provide hot water for the entire household.
Did you know that on average, the production of plastic water bottles consumers more than 1 million barrels of oil every year? The total amount of oil which could be saved by switching to water filtration systems could run over 100,000 cars for a year.