Duraco Rainwater Column Tank 400L

Capacity

400 LitresL

Profile

Column / Slim

Warranty

12 years

Specifications

Duraco rainwater harvesting tank manufactured in Mauritius. Made from 100% virgin food-grade polyethylene, UV stabilised, one-piece moulded construction with no seams or joints. Opaque design prevents algae growth. Slim vertical column design ideal for corner placement alongside walls or fences. Integrated filter system.

Installation Process:

Step 1 — Establish Rainwater Harvesting Capacity: Determine your roof area. Determine average rainfall per week from the Mauritius Bureau of Meteorology. Calculate tank capacity by multiplying roof area by average rainfall. Example: a roof of 100m² with 25mm average rainfall yields 2,500L — required tank capacity is 2,500L.

Step 2 — Select the appropriate model:
– Column Type: 350L to 500L
– Integrated Filter Type (Patented): 2500L to 9000L
– Slim Rainwater Tank: 1200L
– Underground Rainwater Tank: 4700L

Step 3 — Accessories required: Water pump and level indicator (sold separately).

Step 4 — Site Preparation: Place the tank on a solid levelled concrete base. Clear roof guttering of leaves and debris — adjust guttering if needed to direct water to the tank location. Design tank overflows to prevent stormwater ponding under the concrete base or flooding foundations.

Step 5 — Distribution: The system diverts the first 60 litres of each rainfall event to ensure a cleaner supply. Select a pump and filtration system to distribute water inside or outside the home. Connect to washing machine, toilets, or outside gardening tap.

Installation Rules: Tanks must NOT be installed on rocky/uneven surfaces or on blocks and metal frames. Always place on a flat, smooth concrete surface. Outlet must be well supported. Note: these tanks are not designed for underground installation — except the Underground Rainwater Tank 4700L.

Warranty — 12 Years (above-ground models):
– Years 1–4: Free replacement or free repair
– Years 5–6: 85% discount off current retail price or free repair
– Years 6–8: 70% discount off current retail price or free repair
– Years 8–10: 55% discount off current retail price or free repair
– Years 10–12: 40% discount off current retail price or free repair

Warranty Exclusions:
– Accidental damage, acts of God, misuse, or incorrect installation
– Plumbing, fittings, float valve, outlet fittings and lid are not covered
– Leakage resulting from wrong plumbing installation
– Tanks used for storage of chemicals
– Tanks not installed according to Duraco installation instructions
– All tanks must be anchored on a smooth flat surface with no external load applied and inlet/outlet pipes adequately supported