In opinion , I think that cause the university took water from dam to use, water from dam have many sewage such leaves and many other which this water must thought the process of filter water clean but the process of filter water not standard yet, maybe the cause from poom just saying. Sometime, water the process of filter water not clean, brown and smells. The summery is water from dam not clean when meet the process of the filter water not efficiency. The water we use the dormitory so dirty and this is just my opinion that would be broadcast to everyone listening.