Our Rainsmart triple crates are available flat-packed for easy assembly on site. Assembly of each crate takes approximately 3-5 minutes using a rubber mallet (supplied free of charge if you buy our 1 cubic metre soakaway sets)._x000D_Take a quick look at how easy assembly is (the video below is for our double crates, but in order to build a triple add a further 4 small and 3 large plate part unit to the top - as you do to turn the shallow into the double): _x000D__x000D__x000D__x000D_Size, load and capacity_x000D_Each crate has an overall area of approximately 0.33 cubic metres, enabling 3 crates to be used together to make a 1 cubic metre soakaway._x000D_The Rainsmart soakaway crate has an impressive void ratio of 95%. This is the amount of free space within the crate structure that can be used for rainwater storage. Each crate has a capacity of 347.77Litres._x000D_The vertical crush load capacity of 24.2 tonnes per square metre ensures that the Rainsmart Ellipse crates are safe to be used beneath gardens and pedestrian areas. The lateral crush load of 18 tonnes per square metre is the best of any type of soakaway crate._x000D_Joining crates together_x000D_Clips are not required to hold the crates together, we recommend the use of cable ties to hold the crates in situ until the side fill is introduced. No clips on any crate system are structural, it is the side fill which holds the installation in place. Cable Ties are included with our 1m³ Soakaway Sets but if you are ordering individual crates and need to join them together you should order the ties separately._x000D_All outward facing crate surfaces should be always wrapped in non-woven geotextile membrane, which allows the free passage of water but prevents any soil or sand particles from entering the soakaway, maintaining its long term efficiency._x000D_Connecting Pipes to Soakaways_x000D_The 110mm or 160mm drainage pipe is fed into the soakaway via one of the four circular 160mm open entry points. 110mm pipes simply rest on the bottom of this opening and we recommend that the pipe is inserted approximately 150mm inside the crate. Geotextile membrane should be installed over the opening first and then a small cross should be cut in the membrane at the entry point with a sharp knife. Carefully peel back the membrane, insert the pipe and tape or clamp the membrane tightly around the outside of the pipe to stop the ingress of any soil particles._x000D_For a closer look at Soakaway Crates in general, including installation tips, please take a look at our video._x000D_Consider a pre-filter_x000D_For best practice we always recommend that a pre-filter such as our Sentinel Silt Trap is used in conjunction with any modular soakaway system.  Emptying the filter on a regular basis (this is only a five minute job) will maintain the efficiency of the soakaway and greatly increase its lifespan._x000D_Download our Rainsmart Ellipse Double Soakaway Crate Assembly Instructions and Component List with Installation Tips PDF.