water tank 500 ltr price

For a 500‑litre water tank in Australia, you’re typically looking at about $250–$700 new for poly; slimline shapes and colour options sit toward the top of that range.

Used units usually land around $80–$300 if they’re clean and food‑grade, with bargains popping up after renos and relocations.

Factor in delivery ($50–$150 locally) and a few hundred more for basics like a slab/stand, first‑flush, and plumbing bits.

Steel or fancy designer profiles can cost more, but most backyards hit the value sweet spot at roughly $300–$500 for a poly 500L. Check UV rating, inlet/outlet positions, and any warranty—unless you enjoy surprise lawn showers. Hunting a deal? Tradingpost often has used options that just need a rinse and a gasket.