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8 × 6 ft pond: gallons, liner and pump
A 8 × 6 ft pond with straight sides, 2.0 ft deep, holds 718 US gallons (2,718 litres). Adjust the shape and depth below for your pond.
Volume by depth
| Depth | US gallons | Litres | UK gallons | Oval, same size |
|---|---|---|---|---|
| 1.5 ft | 539 | 2,039 | 448 | 423 (1,601 L) |
| 2 ft | 718 | 2,718 | 598 | 564 (2,135 L) |
| 3 ft | 1,077 | 4,078 | 897 | 846 (3,203 L) |
What a 8 × 6 ft pond needs at 2.0 ft
| Liner | 14 ft × 12 ft (with 1 ft overlap) |
|---|---|
| Pump — goldfish | 718 GPH (2,718 L/h) |
| Pump — koi | 1,077–1,436 GPH (4,078–5,437 L/h) |
| UV clarifier | 11 W goldfish · 18 W koi |
| Fish | 5–11 adult goldfish · not big enough for koi |
| Water weight | 5,990 lb (2,720 kg) |
Under 1,000 US gallons (3,800 L) is too small for koi, which grow to 18–24 in.
See the guides to liner sizing and pump sizing.
Questions
How many gallons is a 8 × 6 ft pond?
At 2.0 ft deep with straight sides, 718 US gallons (2,718 litres, 598 UK gallons). An oval pond of the same length and width holds about 79% of that.
What size liner does a 8 × 6 ft pond need?
14 ft × 12 ft for 2.0 ft deep with 1 ft of overlap on each edge.
What size pump for a 8 × 6 ft pond?
About 718 GPH (2,718 L/h) of real flow for goldfish, or 1,077–1,436 GPH for koi.