BLWSI has been in business since 1983. Jim Logan has been a specialist in the water treatment business since 1965. BLWSI has over 50 filter plants in operation in Indiana, ranging from 100 GPM thru 10,500 GPM (15MGD). BLWSI manufactures aerators, filters (including vertical & horizontal), unilator package plant for iron and manganese removal, softening equipment and fluid bed reactors for chemical softening. BLWSI also supplies fully automatic filter operating control panels for our treatment equipment.