Use glass wine bottles with inner bottom cut out for smaller version of the same design. When you evaporate and condense water it becomes pure and is completely safe to drink. Nasty chemicals and bugs do not evaporate with the water.
Laundry Pod - It uses less than 3 gallons of water and zero electricity. Simply place your clothes inside, fill with water and soap then spin the handle on the lid. Use between loads, for delicates, or for clothes that will bleed.
Solar Spark Lighter – Cool Camping Gadget & Survival Tool Really? So you thought to pack your solar spark lighter, the size of a DVD, but you forgot a regular lighter? "I want to switch survival partners.
Solar water disinfection - the SODIS method - is a simple procedure to disinfect drinking water. Contaminated water is filled in a transparent PET-bottle or glass bottle and exposed to the sun for 6 hours.
How to calculate how much water you can harvest from your roof: Collection area (total square footage of your roof) x x (the number assigned to the collection efficiency of a tile roof) x rainfall (in actual or averaged inches) = gallons/year.