We have an open well 38by 33 by 13feet deep it hAS NOT BEEN USED FOR 1 YR . The water smells bad as leaves ,tree twigs and dirt has been falling into it.also could you tell us how much water is in the well in litrers. What kind of chemicals and in what ratio , should we use to clear up the water ,for bathing cleaning the house and washing dishes .we live in india in a very hot climat with the monsoons on the way in one month