Sized to Masika/Vuli rainfall
Tank volumes calculated from your roof area and Zanzibar's two rainy seasons — storage that actually bridges the dry months.
Free water from the sky
Catch the rains. Cut your water bill.
Zanzibar gets two rainy seasons — Masika and Vuli — yet most roofs let thousands of litres run into the drain while ZAWA supply stutters. We design roof-to-tap rainwater systems that turn those downpours into months of free water: gutters, first-flush, storage, filtration and auto changeover from one team. Eco-hotels love the green story; every owner loves the bill.
Product Catalogue
Explore Our Rainwater Harvesting Range
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Start at the roof
Catchment & Gutters
A clean, well-drained roof is your reservoir's roof — sized gutters and first-flush keep every litre worth storing.
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Store the seasons
Storage Tanks
Masika plenty carried into dry months — underground or above-ground tanks sized to your roof and demand.
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Clean it, move it
Filtration, Changeover & Use
Purify rain to whole-house quality, switch sources automatically and feed gardens for free.
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Scale it up
Hotels & Ongoing Care
Bulk collection for resorts plus cleaning and maintenance that keep systems performing season after season.
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One package
Complete Rain-to-Tap System
From roof survey to safe tap water — everything your property needs to harvest the rains.
Roof Catchment Assessment
Seamless Gutters & Downpipes
Leaf Guards
First-Flush Diverter
Storage Tanks
Calmed Inlet & Overflow
Sediment + Carbon Filtration
UV Sterilisation
Booster Pump Set
Auto Mains Changeover
Garden Irrigation Feed
Maintenance Plan
Why harvest with us
Engineered for Zanzibar's rains.
Two rainy seasons, long dry spells and unreliable mains — our systems are sized to this island's reality, not a catalogue guess.
First-flush keeps it clean
Diverters and filters discard dust and debris before they reach the tank — cleaner water, less cleaning.
Auto changeover when tanks empty
Level sensors switch you to borehole or ZAWA mains automatically — taps never run dry between storms.
Hotel bulk scale
Multi-roof collection with 50,000+ litre storage and occupancy-based sizing for resorts that cannot compromise.
Storage options
Tank Options
Tanks and components we install — specified to your roof area, rainfall and daily demand.
Poly Tank 5,000 L
Underground Tank
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Slimline Wall Tank
Cartridge Filter
Media Filter Vessel
UV Steriliser
Booster Pump Set
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Our process
From roof survey to rain-fed taps
A proven sequence — measured yield first, then collection, storage and clean delivery.
- 01
Catchment survey & quote
We measure your roofs, calculate Masika/Vuli yield and quote gutters, tanks and treatment as one system.
- 02
Gutters & collection
Seamless gutters, downpipes, leaf guards and first-flush diverters installed and flow-tested.
- 03
Tanks & treatment
Storage tanks set with calmed inlets and overflows; filtration, UV and booster pumps commissioned.
- 04
Changeover & care
Auto mains changeover wired and tested, then a service plan keeps gutters clear and water clean.
Running a Hotel? Turn Roofs into Revenue.
Let us engineer bulk rainwater harvesting — green credentials for your brand and lower water bills every season.
How Much Free Water Is Your Roof Missing?
Get a free roof-catchment assessment and quotation for gutters, tanks, filtration and hotel rainwater systems in Zanzibar.