How do I determine the correct Pondless Waterfall Vault size?

The correct Pondless Waterfall Vault configuration depends on the pump size, pump flow rate, and underground reservoir depth.

The standard Aquascape Pondless Waterfall Vault accommodates pumps with flow rates up to 12,500 GPH (47,000 LPH).

Pondless Waterfall Vault options

Standard Pondless Waterfall Vault — Item #49000

• Dimensions: 23 × 17 × 25.5 in. (58.4 × 43.2 × 64.8 cm).
• Maximum flow: 12,500 GPH (47,000 LPH).
• Recommended for: Standard Pondless Waterfalls using Small AquaBlox water storage modules.

Pondless Waterfall Vault Extension — Item #49001

• Dimensions: 16 × 16 × 9 in. (40.6 × 40.6 × 22.9 cm).
• Purpose: Increases vault height for deeper reservoirs or larger pumps.
• Recommended for: Deeper Pondless Waterfall basins using Large AquaBlox water storage modules.

How to choose the correct configuration

1. Check pump flow: The standard vault accommodates pumps up to 12,500 GPH (47,000 LPH).
2. Verify pump dimensions: Ensure the pump and plumbing connections fit inside the vault.
3. Check reservoir depth: Use a Vault Extension when additional height is needed for deeper basins or larger pumps.
4. Confirm accessibility: Allow sufficient space to remove and service the pump.

Important: Vault size determines pump accessibility and accommodation. AquaBlox quantity determines underground water storage capacity.