Large Water Tank in Auckland by PRM
Heavy-Duty Water Storage Solutions for Kiwi Homes and Properties
Available Sizes:
Our Solution
All our tanks are manufactured by Plastic Rotational Moulding (PRM), leveraging over 50 years of experience in rotational moulding. They're built to withstand New Zealand's climate, ensuring long-lasting performance and reliability.
Engineered for Performance – Large Plastic Water Tank Options Built to Last
Rain Reserve large water tanks deliver serious storage capacity for rural properties, lifestyle blocks, and commercial applications. Our 10,000L to 30,000L range features heavy-duty construction with super tough dome lids and space frame substructures built to handle New Zealand's demanding conditions.
Each large water tank can be buried up to 500mm deep with clean backfill, giving you flexible installation options. With 2 x 50mm brass BSPT fittings as standard and multi-tank discount pricing available, these tanks are engineered for long-term reliability and easy expansion.
All large tanks include our 20-year residential warranty, free nationwide delivery, and meet strict AS/NZS 4020 potable water standards. Perfect for rainwater harvesting, livestock water, irrigation systems, or emergency water storage.
Tip: Consider positioning multiple tanks in series to maximize catchment and create backup capacity during dry spells.
