Use this RO AMC contract format as a master and change the schedule per customer. Download the Word file and edit it.
RO AMC contract format: Parties and site
Service provider: [company, address]. Customer: [name, address].
Purifier covered
[Make, model, capacity, install date, serial no.] Location: [address].
Services and visits
[Number] service visits per year at [interval], including sanitisation and TDS check.
Filters and membrane
Included: [list with change intervals] / Not included: [list].
Breakdown calls
Response within [hours] on working days; [number] breakdown visits included.
Exclusions
Pump, adaptor, storage tank, tap; damage from misuse, power or plumbing faults; unauthorised service.
Customer duties
Access, a contact person, and prompt notice of problems.
Fee and payment
Fee Rs [amount] plus GST [rate]% for the term, payable [advance / instalments].
Term, renewal and termination
Term [start] to [end]; renewal on written confirmation; termination on [days] days notice.
Use it, then stop retyping it
Put each purifier on the contract so filter visits are created for you. See RO AMC software and the general AMC contract format.