Manas's claim is that India's drinking-water problem is a service problem wearing a hardware disguise. Only 10–12% of Indian households own an electronic water purifier — against 65–70% with a television, 40%-plus with a fridge and 7–10% with an air conditioner — while 70% of the country's disease, he says, is waterborne. The middle third of the country lives on 20-litre cans from a market that is 90% unorganised, where reports the founders read while running an earlier can-delivery app found eight of ten samples failing ISI and BIS norms. So DrinkPrime's competitor was never the incumbent purifier brand: eight of its ten customers come from cans, while six of ten customers at a leading purifier brand are merely upgrading an old machine. That single fact dictated the rest — pay-as-you-go at ₹350 to ₹500 a month, no purchase, no annual maintenance contract, and a technician who collects nothing at your door precisely so that he stops selling you one. The unsubscribe button, Manas argues, is what converts a marketing company into a service company; half of all new customers now arrive as referrals, which is why there is no IPL spend and no celebrity face. The cost of that discipline shows up in the pace: three years of R&D before the subscription launched, an OEM base that told them it could not be done, membranes specified pin code by pin code as TDS runs 300–500 in Mumbai and 800–1,500 in Delhi, and three lakh households reached in effectively three cities rather than twenty.
Worth your time if you are
Anyone whose office still runs on 20-litre cans
Founders putting subscriptions on top of hardware
Operators whose product only works if service does
Apartment residents drinking whatever the tanker brought
Brand builders going after India's unorganised 90%