WEFTEC, Water Environment Federation's Annual Technical Exhibition and Conference, obedo yub madit loyo i North America ki miiyo bot dano mapol ma ngeyo lok kom pii ma aa ki i wilobo weny pwony ki pwony maber loyo i kom pii ma tye i kare ni. Ki ngeyo bene calo nyutu rwom me pii ma dit loyo i wilobo, WEFTEC's ma dit ma ki nyutu iye jami ma ki yubu ki jami ma ki tiyo kwede.
Cawa me cwalo: Aug-14-2013
