Cow dung ash is an excellent water purifier, all harmful bacteria are killed just by adding a pinch or 2 of cow dung ash in few litres of water, this option of adding cow dung ash is so cheap that anyone can afford it......
Cow dung used as fertilizer thru napped method is 4 times more effective ie.. utilisation of cow dung is 100%...Using cow dung as fuel which purifies the atmosphere as well as helps in environment protection...
Burned cow dung repel mosquitos....Spray fresh cow dung mixed with water in front of the houses to repel insects...end.