HydroBlox™
$89.99
4.5 Cubic Feet
Water Storage Units
for Pondless Water Features.
Strong. Light Weight.
Less Digging. Less Gravel. Less Cost.
How many HydroBlox™ do I need?
HydroBlox™ enable pondless water feature water storage basins to hold more water in less space than the common gravel filled pondless water feature basins, and are less expensive and more customizable than tank type pondless water storage basins.
Pondless water feature water storage basins filled with gravel by their design - being filled with rock - hold very little water - so their dimensions have to comparatively large. This means excavating a much larger hole in the ground. Why spend your time digging a big hole just to fill it back up with rock? Russell Watergardens' HydroBlox™ are your answer!
LESS DIGGING. LESS GRAVEL.
LESS LABOR. LESS COST.
The common rock-filled pondless water feature water storage basin is completely filled with rock and gravel. The result is 80% rock and only 20% water in the water storage basin! So the common 4' wide x 6' long x 3' deep pondless water feature basin has a maximum capacity of 72 cubic feet of water (538.56 gallons), but when filled with 80% rock and gravel - the water volume storage capacity is reduced to just 14.40 cubic feet of water (107.71 gallons). So this means a large hole had to be excavated, then filled back up with expensive, HEAVY, labor intensive rock and gravel.
A much smaller 2' x 4' x 2' HydroBlox™ pondless water feature basin holds 16 cubic feet of water (119.68 gallons). Not only does the HydroBlox™ pondless water feature basin hold more water, it is much smaller in size - which means it requires MUCH LESS DIGGING, and eliminates the high cost of gravel, and the labor to install it. Simply dig the basin, install the underlayment and liner like normal, then place the lightweight but strong HydroBlox™ down into the pondless waterfall basin and add a little gravel on the edges.
HydroBlox™ are lightweight, yet their unique design makes them extremely strong. Try picking up up 4.5 cubic feet of rock this easy!
HydroBlox™ pondless water storage units can actually be placed underneath a stream to completely hide it from view as seen in this photo on the right. You no longer need a large gravel basin area. You can even place the HydroBlox™ pondless water feature water storage units under a brick paver or slate patio!
YES! I'm ready to purchase HydroBlox
for my pondless water feature!
The result is water disappearing at the end of the stream - not into a huge bed of river rock.
Look at this photo on the right. See how the water is vanishing just a few inches from the end of the stream? Only HydroBlox™ facilitate water disappearing like this.
While its a well known fact that gravel filled pondless water feature water storage systems are extremely labor intensive and difficult to install - not to mention keep clean - tank type pondless water feature water storage systems are much more expensive and not as easily customizable.
Russell Watergardens' HydroBlox™ pondless water feature water storage units are the best of both worlds! HydroBlox™ combine the high water volume in a compact space that the more expensive tank type pondless water feature storage units have with the complete customizability and lower price of the rock and gravel type systems.
Unlike the more expensive tank type pondless water feature storage systems - HydroBlox™ are economically priced! Less than 20% the cost of tank type system that holds similar amounts of water. HydroBlox™ ship disassembled and flat - so the shipping charges are less than tank type systems also.
HydroBlox™ hold more water for less money, less labor, and less shipping charges!
Unlike the difficult to install, impossible to clean rock and gravel filled pondless water feature storage basins - HydroBlox™ consist of 94% open space so nothing gets trapped in them. Thus, make cleaning what little cosmetic gravel there is, simple and easy! Simply hose the small amount of gravel down into the HydroBlox™ water storage basin. The pump inside the Hydro Chamber™ will pump the dirty water up to the Hydro Vortex™ filter. Simply open the Hydro Vortex™ filter's bottom drain and pump out the dirty water! What could be easier?
HydroBlox™ are shipped disassemble in 8 parts - 4 large panels, and 4 small panels. The all simply "snap" together - just a hammer or mallet is all you need. No glue is required. Each large piece has slots for the small piece's tabs.
YES! I'm ready to purchase HydroBlox
for my pondless water feature!
Click on the photos to enlarge, then hit your "Back" button to return.
The panels snap together, and stay together without glue!
Simply push the tabs into the slots and lightly hammer them together!
The finished HydroBlox™ unit holds 33 gallons of water!

YES! I'm ready to purchase HydroBlox
for my pondless water feature!


YES! I'm ready to purchase HydroBlox
for my pondless water feature!

How many HydroBlox™ do I need for my pondless waterfall design?
Each HydroBlox™ holds 4.5 cubic feet of water. You'll need to calculate the cubic footage of water in the design you are planning. Cubic footage is calculated by multiplying the length by the width by the depth.
1 cubic foot holds 7.48 gallons of water.
Example: You want to build a 20 foot long stream that is 2 feet wide and 2" deep. (Pump flow rate does not matter in calculating cubic footage of water.) Multiply 20' length x 2' width x .17' depth (2" = .17'). The result of the calculation is 6.80 cubic feet of water.
So a 20' long by 2' wide by 2" deep stream has 6.8 cubic feet of water. Each HydroBlox™ holds 4.5 cubic feet of water - so you would need two HydroBlox™ to hold all the water in this stream.
Another example: You want to build a 2' high, 2-step waterfall that is 3' wide and no stream. In this example, we use the height as our length multiplier - so the calculation is 2' x 3' x .17' = 1.02 cubic feet of water. So you'll need just one HydroBlox™.
One more example: You want to build a 4' high multi-stepped waterfall 3' wide cascading into a 46' long stream that is 3' wide. You want the water to move slower so you build little gravel dams in the stream - this will cause the water to be deeper in the stream. So instead of a 2" water depth, you have a 6" water depth. So convert 6" into feet. (6" ÷ 12" = .5') In this case, add the height of the waterfalls to the length of the stream - then do the normal calculation of length x width x depth but use .5 as your depth multiplier. 46' long + 4' high = 50' total. 50' long x 3' wide x .5' deep = 75 cubic feet of water in this design.
Each HydroBlox™ holds 4.5 cubic feet of water - so divide 75 cubic feet by 4.5 cubic feet which equals 16.66 HydroBlox™. So this design would require 17 HydroBlox™ to hold all the water underground when you turn the pump off and all the water drains out of the falls and stream bed. The 17 HydroBlox™ can be placed in any format that your space allows - end to end, side by side, stacked on top of each other, or any combination of all three methods. They can even be placed underneath the streambed itself as seen in the photo above.
1 cubic foot holds 7.48 gallons of water.
YES! I'm ready to purchase HydroBlox
for my pondless water feature!
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