{"product_id":"half-off-ponds-matrixblox-water-storage-3-pack-31-5-gal-interlocking-high-capacity-blocks-for-pondless-waterfalls","title":"HALF OFF PONDS MatrixBlox Water Storage 3-Pack — 31.5 Gal Interlocking High-Capacity Blocks for Pondless Waterfalls","description":"\u003cp\u003e\u003cstrong\u003eHALF OFF PONDS MatrixBlox 3-pack provides compact, high-capacity underground water storage that supports pondless waterfalls, bog chambers, or subsurface irrigation with a combined 31.5 gallons per pack.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese modular Water MatrixBlox are engineered to create high-volume, weight-bearing reservoirs beneath landscape features so you can build smaller, cleaner basins without sacrificing water capacity. Each block’s honeycombed interior saves space with up to 96% void volume, and the rugged interlocking design handles surface loads so you can finish the project with pavers, gravel, or turf. This bundle includes three units sized to fit a variety of lined excavations and to be stacked or arranged in custom configurations for almost any basin depth or footprint.\u003c\/p\u003e\n\n\u003ch3\u003eHow much water does the 3-pack actually hold?\u003c\/h3\u003e\n\u003cp\u003eThe three-block bundle delivers 31.5 gallons of stored water when installed as intended. High void ratio means more water in less space, letting you reduce basin excavation and liner area compared with loose rock or single-chamber tanks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCombined capacity: 31.5 gallons for the 3-pack\u003c\/li\u003e\n  \u003cli\u003eIndividual block dimensions: 28\" x 17\" x 15.5\" for predictable layout planning\u003c\/li\u003e\n  \u003cli\u003e96% internal void for efficient volume per footprint\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these blocks perform under landscaping and foot traffic?\u003c\/h3\u003e\n\u003cp\u003eMatrixBlox are built to lock together and distribute loads to allow finished surfaces directly above the reservoir. Once assembled you can cover them with soil, gravel, pavers, or sod without special protective layers, depending on load demands. Their sturdy geometry prevents collapse while maintaining the internal storage voids.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInterlocking design secures multiple units into a stable platform\u003c\/li\u003e\n  \u003cli\u003eSupports landscaping materials like pavers and gravel\u003c\/li\u003e\n  \u003cli\u003eWorks beneath turf or planted areas for discreet installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I customize basin shape and depth with these blocks?\u003c\/h3\u003e\n\u003cp\u003eYes — the modular format lets you arrange the blocks in linear runs, stepped tiers, or stacked columns to match your excavation. You can combine any number of units and mix levels to fit irregular footprints, making them suitable for narrow trenches, wide basins, or multi-level waterfalls. They also serve well as settling chambers under bog filters or planted features.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eArrange blocks in any pattern to match the liner or excavation\u003c\/li\u003e\n  \u003cli\u003eStack vertically for deeper reservoirs or step for tiered designs\u003c\/li\u003e\n  \u003cli\u003eSuitable for bog construction and settling chambers under plantings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation details should I plan for?\u003c\/h3\u003e\n\u003cp\u003eInstall MatrixBlox in a properly prepared, lined excavation with stable bearing soil. Because the blocks are designed to retain water internally, ensure your liner is correctly fitted and sealed around the assembly. Simple mechanical locking means fast assembly on-site without special tools, though anchoring and backfill practices should follow local landscaping standards.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrepare a level, compacted base before placing blocks\u003c\/li\u003e\n  \u003cli\u003eUse a compatible pond liner to fully contain the water reservoir\u003c\/li\u003e\n  \u003cli\u003eLock blocks together and backfill edge gaps as recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? HALF OFF PONDS MatrixBlox 3-pack is ideal for landscapers, pond builders, and DIY homeowners designing pondless waterfalls, compact reservoirs, or planted bog filters who need high water capacity in a small footprint. It suits projects where load-bearing subsurface storage is required but excavation space is limited, and for anyone looking to simplify installation with modular, stackable components.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many gallons does each MatrixBlox hold?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The 3-pack holds 31.5 gallons total; individual block capacity is proportionate to that combined volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I walk or place pavers over the installed blocks?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the interlocking MatrixBlox support pavers, gravel, or turf when properly installed and backfilled.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HALF OFF PONDS","offers":[{"title":"Default Title","offer_id":56806188515668,"sku":"B08DP66DHP","price":410.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/half-off-ponds-matrixblox-front-view.jpg?v=1786814116","url":"https:\/\/gardenluxe.co.uk\/products\/half-off-ponds-matrixblox-water-storage-3-pack-31-5-gal-interlocking-high-capacity-blocks-for-pondless-waterfalls","provider":"Gardenluxe Uk","version":"1.0","type":"link"}