What's the cheapest practical way to purify water at home without installing a full RO? Renter friendly solutions only.
Okay so I've done a lot of research on this and want to share what I found because I couldn't find a single clear post compiling all the options.
My situation: Rented flat in Mumbai, landlord said no permanent installations, water TDS is around 180-220 (not terrible but not great), spending ₹400/month on 20L cans which feels wasteful and honestly I don't fully trust those either.
Options I found and what I actually think:
**Gravity based purifiers (Tata Swachh, HUL PureIt basic)**Pros: No electricity, no installation, ₹1,200-2,000 upfrontCons: Slow, needs manual refilling, takes up counter space, filter replacements add up
Kent table top ROPros: Actually works wellCons: ₹8,000-12,000, still needs drilling for drain pipe, wastes 3L for every 1L purified — not practical for renters or people who care about water wastage
Tap mount purifiersPros: ₹500-1,500, zero installation (literally just screws on), no electricityCons: Most are just sediment filters pretending to be purifiers — you have to be careful about which brand you trust.
Found one from ZeroB (Ion Exchange) called Suraksha Tap 2.0 at ₹2,000 that seems legit because Ion Exchange has been doing water treatment since the 1960s, not a random brand. Been using it 2 months, water tastes noticeably cleaner.
UV wands / portable UV purifiersPros: Actually kills bacteria and virusesCons: ₹2,500-4,000, doesn't remove dissolved solids or chemicals, battery dependent
Filtered water bottlesPros: Portable, doubles as your daily bottleCons: Filter capacity is limited, not ideal as your only home solution
My conclusion: For renters the tap mount + a filtered bottle combo is the most practical under ₹2,500 total. Tap mount handles home cooking and drinking, filtered bottle handles outside.
Would love to hear what others are doing — especially people in Mumbai/Bangalore/Delhi where water quality varies a lot by area.