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Where We Have Already Installed WASH Water Filters
Last updated: 19 August 2026
Parashu® drinking water filters have been installed in schools under the supervision of the Rotary Club of Kolkata and the Rotary Club of Belur, and as part of CSR projects by companies including Mitsubishi Power.
Club-led projects
We have worked directly with Rotary project committees — from the first school visit through to the inauguration — and we understand how club procurement, budgeting and reporting work.
Corporate CSR
Installations delivered under CSR programmes require invoicing, photographs and utilisation records in a specific form. We supply these as standard.
Beyond the metro
Our school installations run from central Kolkata out to Hooghly, Murshidabad, Purba and Paschim Midnapore and North 24 Parganas — rural sites, not just easy ones.
Schools with Parashu® water filter installations
A partial list of schools where our drinking water filters are installed:
- Binodini Girls High School, Kolkata
- Jodhpur Park Boys School, Kolkata
- Kamala Chatterjee School, Kolkata
- Kalighat High School (Junior Section), Kolkata
- Vivekananda Bidyapith, North 24 Parganas
- Bharatpur Alia High School, Murshidabad
- Purba Bharatpur Primary School, Murshidabad
- Debra Adarsha Vidyapith, Paschim Midnapore
- Saradapally Govt Free Primary School, Hooghly
- Bantika Girls High School, Hooghly
- Talpur Laxmimoni Girls High School, Hooghly
- Aror Nityananda Primary School, Purba Midnapore
- Belmuri Balika Vidyalaya
- Chakpara Purba Pallisamaj High School
- Chakpara Sarada Devi Girls High School
- Chandannagar Sarada Sadhan Girls High School
- Mohadanga Colony Subhash Vidhya Mandir
- Borai Balika Vidya Mandir
Drinking Water Filters for WASH Projects
The right system for a school depends on how many students it serves, whether there is an existing water cooler or drinking water station, and what the source water is like. All six systems below are non-RO by default: they remove sediment, iron, chlorine, heavy metals, bacteria, viruses and other microbes, while retaining the natural minerals in the water and producing no reject water.
| System | Best suited to | Indicative price |
|---|---|---|
| Parashu® Ultra Secure Drinking Water Purifier | Three-stage, 180 LPH. Higher throughput for mid-sized schools with a fixed break time rush. | ₹ 10,974 |
| Parashu® Heavy Duty Water Cooler Commercial Filter System (500 LPH) | Schools that already have a water cooler or multi-tap station. Wall mounted, failsafe. | ₹ 28,910 |
| Parashu® Heavy Duty Drinking Water System — Ultrafiltration with Automatic Backwash + UV (1000 LPH) | Flagship club projects, large campuses and community drinking water points. Self-cleaning. | ₹ 77,054 |
Prices are indicative, per unit, and exclusive of installation, pipework and taxes. Final quotation follows the site survey. Where a club is funding several schools in one grant, please ask us for a project rate.
Which System Does Our School Need?
This is the first question every project committee asks, and it is easier to answer than it looks. Drinking water demand in a school is concentrated into a few short windows — the morning assembly, the tiffin break, the end of the day — so what matters is not the daily total but whether the system can refill fast enough between those rushes.
| Student headcount | Indicative system |
|---|---|
| 150 – 300 | Parashu® Ultra Secure Drinking Water Purifier (180 LPH) |
| 300 – 800 | Heavy Duty Water Cooler Commercial Filter System (500 LPH) |
| 1,500+ or multi-block campus | Heavy Duty Drinking Water System — Ultrafiltration with Automatic Backwash + UV (1000 LPH) |
These bands are a planning guide only. Actual sizing depends on source water quality, storage capacity, the number of drinking points and the school's timetable. We confirm the specification during the site survey before the club commits any funds.
Add Rainwater Harvesting to Widen the Project
A rainwater harvesting project, coupled with a WASH project, greatly improves the appeal and scope of the entire project.
We also build and implement small and large rainwater harvesting projects in schools at minimum extra cost. We generally use media filters to purify the harvested rainwater, and we take advantage of existing structures and catchments to keep costs down — most school buildings already have the roof area, the downpipes and often a disused tank that can be brought back into service.
For a club, this matters for a practical reason beyond the water itself. A drinking water filter is a single deliverable. A drinking water filter plus a rainwater harvesting system is a visible, teachable installation that the school can build a hygiene and conservation programme around, and that reads far better in a project report and at district level.
All rainwater harvesting projects are undertaken only after a feasibility assessment of the site. Where the catchment or the ground conditions do not justify it, we will tell you so rather than sell you one.
How a Club WASH Project Runs With Us
Initial conversation
Tell us the school, the approximate student strength and the budget the club has in mind. Often that is enough for us to indicate a system and a figure the committee can work with, before anyone visits anything.
Free site survey and water assessment
We visit the school, look at the source water, the storage, the plumbing and the place where students actually collect water, and assess feasibility — including for rainwater harvesting if the club wants it in scope. There is no charge for this.
Written specification and quotation
You receive a specification and a firm quotation in a form your project committee can put to a vote, and that a sponsoring company can put through its CSR approval.
Supply, installation and commissioning
We install and commission the system, scheduling the work around holidays or weekends where the school asks. Installations are photographed as they are completed.
Handover and staff training
We show the school's own staff how to change a cartridge and how to spot when it is due. This takes minutes, needs no tools, and is the single thing that determines whether the installation survives.
Ongoing support
Replacement cartridges are inexpensive and freely available from us. An annual maintenance contract is available where a club prefers to fund one, but it is optional by design, not by omission.
Why Non-RO Systems Suit School WASH Projects
Reverse osmosis is the default assumption in most drinking water conversations, and for a school WASH project it is often the wrong one. Three reasons:
- Reject water. An RO system discards a substantial share of the water it treats. In a school on an intermittent municipal supply or a single borewell, that waste is a real operational problem.
- Minerals. RO strips the natural minerals from water along with the contaminants. Our ultrafiltration and UV systems remove germs, sediment, iron, chlorine and heavy metals while leaving the mineral content intact.
- Running cost and dependence. RO membranes and pumps mean recurring cost and a service dependency. Our systems are do-it-yourself throughout, which is what keeps them running after the club has moved on to its next project.
Where the source water genuinely has high dissolved solids, an RO stage is the correct answer and we will specify one after testing. That is a decision for the water report, not the brochure.
Clubs and Districts We Serve
We work with Rotary clubs, Lions clubs, NGOs and corporate CSR teams across Kolkata, Howrah and the surrounding districts of West Bengal. Our school installations already run well beyond the metro.
Planning a project outside these districts? Call us and ask — we have travelled further for the right project.
WASH Water Filter Solutions We Provide
Clubs and CSR teams reach us looking for a range of related things. Depending on the site, the school and the scope of the grant, a project may involve any of the following:
- water filters for WASH projects
- school drinking water project Kolkata
- Rotary club WASH project water filter
- Lions club drinking water project
- CSR drinking water project West Bengal
- school water purifier installation Howrah
- community drinking water system
- institutional water purifier for schools
- 1000 LPH drinking water system
- 500 LPH commercial water filter
- non RO water purifier for school
- UV water purifier for institutions
- ultrafiltration drinking water plant
- water cooler filter system for schools
- rainwater harvesting for schools Kolkata
- rainwater harvesting WASH project
- safe drinking water for anganwadi
- mid day meal kitchen water filter
- NGO water purification project Bengal
- bulk water purifier supplier Kolkata
Frequently Asked Questions
Get in Touch With Us
Tell us about the school and the scope your club has in mind. We will come back with an indicative system and figure, and arrange a free site survey when you are ready.
We take every care to see that your project is a grand success.
