Clean drinking water is a daily need, yet many neighbourhoods in Kerala still depend on tanker supply, bore wells, or ageing municipal lines. If you have ever replaced kettle elements every few months or worried about your child’s stomach bugs, you already know that a jug filter is only a short-term fix. A dedicated home water purification plant is a smarter long-term move. This article looks at typical costs, how to size a plant for a household, and how the team at Home Care Water Purifier makes the whole process simple.
What is a home water purification plant?
A home plant is a compact treatment system that draws water from your existing inlet, removes dissolved solids, microbes, and odour, then stores the treated water in a pressurised or gravity tank. The most popular set-ups combine these stages:
- Pre-filtration to remove mud and rust.
- Carbon filtration for chlorine and smell.
- Reverse osmosis (RO) to cut total dissolved solids (TDS).
- UV or ozone disinfection to kill bacteria and viruses.
- Post-carbon polishing for taste.
All components are fixed on a mild-steel or stainless frame. Flow rates range from 15 litres per hour (LPH) for a studio flat to 250 LPH for a large villa.
Why sizing matters
An undersized plant will struggle during summer when water use peaks, forcing you back to bottled water. An oversized plant wastes money, electricity, and space. Correct sizing balances these four points:
- Daily consumption
- Feed water quality
- Peak demand periods
- Future family growth
1. Daily consumption
The Bureau of Indian Standards suggests 135 L per person per day for urban homes, but only 8–10 L of that is used for drinking and cooking. A family of four therefore needs roughly 40 L of treated water each day.
2. Feed water quality
If inlet TDS is below 500 ppm, a two-stage filtration with UV may be enough. Above 500 ppm, RO becomes essential. Higher TDS also slows membrane flow, so bigger membranes or twin membranes might be required.
3. Peak demand periods
Evening cooking, quick refills before school, and weekend gatherings can triple the hourly load. Storage tanks cushion these spikes, but the plant should still refill a 100-litre tank within two to three hours.
4. Future family growth
Couples often plan for future children or elderly parents moving in. Adding a 25 percent buffer keeps the plant relevant for at least a decade.
Typical cost breakdown in Kerala (2025)
The table below lists current market prices for popular capacities, including full installation. Prices include GST but exclude optional annual maintenance contracts (AMC).
| Capacity (LPH) | Ideal household size | Key components | Approximate price | Footprint |
|---|---|---|---|---|
| 15–25 | 1–2 people | Sediment, carbon, UV | ₹18,000–₹25,000 | 1.5 ft x 1 ft |
| 50 | 3–4 people | Sediment, carbon, 75 GPD RO, UV | ₹34,000–₹42,000 | 2 ft x 1.5 ft |
| 100 | 4–6 people | Dual 100 GPD RO, UV, mineral cartridge | ₹55,000–₹68,000 | 3 ft x 2 ft |
| 150 | 6–8 people | High-pressure pump, 300 GPD RO, UV | ₹78,000–₹92,000 | 3.5 ft x 2 ft |
| 250 | Villas & small guest houses | 600 GPD RO, SS frame, ozone | ₹1.2 lakh–₹1.45 lakh | 4 ft x 2.5 ft |
Prices gathered from recent installations across Kochi, Thrissur, and Calicut. Actual costs vary with raw water quality, plumbing distance, and choice of storage tank.
Hidden costs to watch for
- Pre-filter cartridges: Replace every 3–6 months. Budget ₹600–₹900 each time.
- RO membrane: Good brands last 2–3 years. Replacement cost ₹3,500–₹4,200.
- Electricity: A 50 LPH plant draws around 0.25 kWh. At Kerala tariffs this is less than ₹250 per month for a family of four.
- Annual maintenance contract: Home Care Water Purifier offers AMC plans starting at ₹2,000 per year covering three service visits, sanitisation, and minor spares.
How Home Care Water Purifier helps you choose
Many first-time buyers feel lost when a technician throws numbers like 75 GPD or 4040 membrane. Our team keeps things simple with a three-step approach:
Free site survey
A trained engineer checks inlet TDS, iron, pH, and pressure using portable meters. Plumbing access and floor space are mapped, and your family’s water habits are discussed.
Clear proposal within 24 hours
You receive a short report with two capacity options, a line-item quote, and a sketch of where each filter stage will sit. No technical jargon, no surprise add-ons later.
Quick installation and hand-over
Most home plants are fitted in one working day. Our crew drills minimal holes and uses food-grade tubing. Before leaving, we test TDS again, show you how to read flow meters, and register your plant for warranty.
Common sizing scenarios
Small apartment in Kochi
- Family size: Newly married couple.
- Feed water: Corporation supply, TDS 320 ppm.
- Solution: 25 LPH UV-RO plant with 30-litre tank.
- Cost: ₹26,000 including GST and basic plumbing.
Bungalow in Thrissur
- Family size: Six members, plus weekend guests.
- Feed water: Bore well, TDS 780 ppm.
- Solution: 100 LPH twin-membrane RO with 200-litre pressurised tank, add-on softener for bathrooms.
- Cost: ₹68,000 for kitchen plant, ₹22,000 extra for softener.
Home bakery in Calicut
- Family size: Four, with daily dough preparation needing low-TDS water.
- Feed water: Mixed bore and municipal, TDS 540 ppm.
- Solution: 150 LPH RO with mineral addition and UV, 300-litre tank connected to bakery mixer.
- Cost: ₹85,000. Saves roughly ₹4,500 per month previously spent on jar water.
Quality standards we follow
- BIS 10500:2012 for potable water.
- WHO guideline of <500 ppm TDS for good taste.
- ISI-marked pumps and housings only.
An in-house lab records TDS, hardness, and microbial test results for every installation file. Copies are shared with you by email, handy for insurance or rental agreements.
Flexible payment and service plans
- EMI options through Bajaj Finserv and HDFC at zero processing fee.
- AMC upgrades allow filter changes every four months if your inlet is extremely muddy.
- 24 x 7 helpline for motor or leakage issues. We reach most addresses in central Kerala in under four hours.
Environmental benefits
Bottled water creates roughly 50 grams of plastic waste per two-litre container. A home plant paired with a reusable stainless jug can cut over 400 kilograms of plastic in five years. Energy use is lower too; RO pumps run on a small 0.5 hp motor, far less than the fuel burned to truck jars across districts.
Key takeaways
- Size the plant to daily drinking and cooking needs, not the full 135 L per person figure often quoted for total household use.
- Check raw water TDS first. Values below 500 ppm may not need RO, saving money.
- Budget for filter changes. Consumables are small but coming expenses.
- Pick a trusted installer with local service reach and clear paperwork.
Home Care Water Purifier has installed more than 4,500 home plants since 2010, ranging from 15 LPH corners to full villa systems. If you want a precise cost and sizing plan for your house, call 99955 44433 or request a free survey at our booking page.
Clean water should never be guessed. Let our team measure, plan, and install a plant that fits your family and your budget.