Dear Friend,To reduce TDS level of water locally you can suggest people to use seed of Drum stick, i.e. very good Coagulation

Dear Friend,To reduce TDS level of water locally you can suggest people to use seed of Drum stick, i.e. very good Coagulation material in nature, followed by filteration. Alternatevely you can use local alum, a pinch of alum powder is capable to remove TDS of water but you need to mix it in the water properly then filter the water by fine cloth.