1. Providing save resources of water to local conditions 
(1) digging shallow wells
(2) digging hand-press wells
(3) using water post separating pools
(4) drawing in deep water
(5) filtering by water tub
(6) building tap water factories and stations

2. Handling eating water by physical and chemical methods 
(1) killing cercaria by heat
(2) killing cercaria by lime chloride (bleaching powder) 
(3) killing cercaria by tincture of iodine 
(4) killing cercaria by raw lime
(5) killing cercaria by niclosamide medicine gauze