AquaBlox® Water Storage Module

Name: AquaBlox® Water Storage Module
Brand: Aquascape
SKU: PS29491
Price: 44.99 USD
Availability: InStock

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When you’re building a pondless waterfall, rain-harvesting system, or any hidden reservoir, size matters – but so does smart engineering. The AquaBlox Water Storage Module is purpose-built to displace more water in less space, delivering roughly 7.4 gallons of storage per cubic foot – over three times what gravel would give you.

Lightweight, modular and assembled with ease, these units reduce liner use, decrease excavation size, and let you build high-capacity reservoirs with minimal footprint. The structural top supports up to 5,472 pounds per square foot – meaning you can bury these modules under decks, patios or heavy stone covers and still maintain full performance.

Product Details & Specs

Product Type: Modular Water Storage Module

Primary Use: Pondless waterfall reservoirs, rainwater harvesting, hidden storage basins

Water Storage Capacity: Approx. 7.4 gal per cubic foot of module volume

Load-Bearing Capacity: Up to 5,472 lb/ft²

Available Sizes:
Small: 26.5″ L × 16″ W × 9.5″ H (approx. 17 gal)
Large: 26.5″ L × 16″ W × 17.5″ H (approx. 32 gal)

Construction: Recycled high-density plastic, modular panels and supports

Brand: Aquascape®

Availability: Salt Lake City, Heber, Sunset, or Vancouver (verify local yard stock)

Shipping & Availability

In stock at our American Stone yards.
Shipping available nationwide.
Local pickup from Salt Lake, Heber, Sunset, or Vancouver.

FAQs

Q: Why choose AquaBlox instead of filling with gravel?
A: Because they allow far greater storage per cubic foot – about 7.4 gal vs. ~2.2 gal with gravel. Less excavation, fewer materials, less liner required.

Q: Can I install these underneath a patio or driveway?
A: Yes – they’re engineered to support heavy loads (5,472 lb/ft²) and are frequently used under decks, stone patios and walkways.

Q: Are there different sizes or modules?
A: Yes — at least ‘Small’ (~17 gal) and ‘Large’ (~32 gal) modules standard, with stacking/row options to build larger volumes.

Q: How does this help me with evaporation and maintenance?
A: Because the modules hold more water in less space and use less liner surface area, they reduce the amount of water you need to top off and lower chances of clogging or sediment build-up versus gravel systems.

Need Help Picking the Right Setup? We’ve Got You.

Every water feature is unique, and we know the parts list can get confusing fast. We offer the entire Aquascape lineup, and our team can help you match the right pumps, liners, and basins to your project – saving you time, hassle, and often, money compared to pre-packed kits.

Give us a call or stop by and we’ll walk through your setup together and make sure you have everything you need for a pond or waterfall you’ll be proud of.

Speak with an American Stone Team Member

Pro Tips from American Stone

Start your excavation plan using the volume per module metric (7.4 gal/ft³) – helps you size your basin precisely.
Use underlayment and liner only under the modules – not full gravel bed – saves liner material and labor.
Ensure you place modules on a leveled, compacted base to ensure proper load transfer and avoid settling.
For larger reservoirs, stack or row modules and fully seat seams under the liner to create a monolithic storage system.
Consider leaving an access panel or vault lid above modules to enable maintenance or pump replacement.

AquaBlox® Water Storage Module

READY TO GET STARTED? >>>

Need Help Picking the Right Setup? We’ve Got You.

Pro Tips from American Stone

Flexible Financing

Professional Pricing

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