Available Colours
Available Colours
* Product May Vary Slightly. Polymaster will not be held liable for incorrect colour impressions, request your Polymaster colour sample to view colours. Polymaster tank colours represented match COLORBOND steel colours. *COLORBOND® and colour names are registered trademarks of Blue Scope Steel Ltd™.
RWT22500
22,500L Round Rainwater Tank
This popular large 22,500L (5,000 gallon) water tank is well suited to rural properties or large town blocks where you require plenty of water storage, especially in combination with a second rainwater tank when rainwater is your main supply for household use. This certified rainwater tank is manufactured with strength in mind.
- No joins, no seams — one-piece moulded with a self-supporting roof that won’t sag.
- Safe for drinking water — food-grade, BPA free, certified to AS/NZS 4766.
- Big capacity, one footprint — 22,500L in a single tank, with a 40mm outlet for strong flow.
Get in touch
Need the right tank solution fast? Speak with a Polymaster expert today
Dimensions
Capacity:
22,500L (5,000 gallons)
Inlet Height:
2,470mm
Diameter:
3,560mm
Overall Height:
2,800mm
All measurements listed are approximate only
Standard Fit Out
Strainer Position:
12 o’clock
Overflow Position:
11:30 o'clock
Outlet size:
40mm (Brass)
Outlet Position:
6 o’clock
Strainer Size:
400mm
Ball Valve:
40mm
Guides & Specifications
Download Drawing
Installation Manual
EXPERT SOLUTIONS
What makes Polymaster tanks the toughest?
- Self-suppoting roof design means no support poles are necessary premium support
- Extra thick walls for maximum strength
- Double strength UV+ resin ensures ultimate protection against the harsh sun
- One-piece construction with no joins, seams or part-lines
PRODUCT FEATURES
Highest Quality & Standards
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Lifting Lugs
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FAQs
Frequently Asked Questions
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What property access is required for delivery?
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How often should rainwater tanks be cleaned?
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Should you drain your water tank every year?
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Are rainwater tanks worth it?
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What is the difference between a rainwater tank and a stormwater tank?
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What size rainwater tank do I need for my garden?
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What property access is required for delivery?
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam in vulputate lacus. Nulla elementum velit non ex consectetur scelerisque. Morbi et pretium risus.
- Morbi et pretium risus.
- Morbi et pretium risus.
How often should rainwater tanks be cleaned?
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam in vulputate lacus. Nulla elementum velit non ex consectetur scelerisque. Morbi et pretium risus.
- Morbi et pretium risus.
- Morbi et pretium risus.
Should you drain your water tank every year?
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam in vulputate lacus. Nulla elementum velit non ex consectetur scelerisque. Morbi et pretium risus.
- Morbi et pretium risus.
- Morbi et pretium risus.