[Resolved]  Aquaguard Ultra — CHEATING ON THE NAME OF AMC

I had an Aquaguard Classic installed in my home. I did not receive any after sales servicing from them even during the warranty period. Each time I called them, they gave me the same stock reply : "Our man came to your house but it was locked." It was their word against mine and not much that I could do. When I said they should give me a fixed date and time, they were not willing to commit but merely said "We cannot do that, our man will contact you." No such call ever came from their man.
I don't want any more AMCs. But my question is, how do I clean the gadget myself and where do I go to purchase the filtering material ?
Please help.

Mrs Eunice D'Souza
Kalyani Nagar, Pune

The story is same all over India. I am also a victim of aquagaurd AMC.
ANIL KUMAR
VINDHYANAGAR
SINGRAULI/MP