Avanoa o le talosaga:Fa'asologa GYW vacuum fa'amama maneta tumau o se fa'agogo ituaiga fa'amama fafo fa'amama fa'amama mageta tumau ma fafaga pito i luga, lea e sili ona talafeagai mo dehydration o mea fa'amaneta fa'atasi ma vaega mama.
Avanoa talafeagai:Fa'aaoga lautele i vaituloto tetele, faatanoa, laufanua, vai, otaota o le taulaga, e aveese le eutrophication o nitrogen, phosphorus ma cyanobacteria.