Water Filtration System

Hello Friends, 
Myself and my Australian friend Maddi are trying to raise enough money to set up a water filteration system for the clinic we are working at in the slums of India. 
Water is one of the most important medicines we recieve as human beings. Initially we were raising money for medical supplys, after working in the clinic we realised most patients come in malnutritioned and dehydrated, we want to provide a long lasting way that filtered water is accessable to every person who needs it. 
We would love if you or anyone you know could help us, a basic filteration system costs around $500 USD, we are both contributing big amounts, however still need a fair bit of help. 

Thankyou, sending big love from India 
Maddi & Rosalinda :-)))