french & trench drains
HydroBlox can be used as a superior replacement to traditional french drains in residential, commercial, sports & turf applications
What are the benefits?
  • HydroBlox resists the effects of fine particle infiltration (i.e. clogging)
  • HydroBlox eliminates cleaning or removing the accumulated silt
  • Proven long lasting drainage system
  • Environmentally friendly drainage material offering exceptional performance and unique physical and practical characteristics
  • HydroBlox is lightweight, easy to handle and transport.
  • Fast and simple installation leading to reduced construction costs.
How do I use HydroBlox ?
  • HydroBlox replaces stone carpet layers and surface water pipe systems.
  • The high void structure has increased efficiency when compared to pipe & stone.

How do I install HydroBlox?
  • HydroBlox is very simple to install. Place the HydroBlox (side by side) across the field area.
  • Install root zone and turf above the HydroBlox base.
How deep in the ground do HydroBlox need to be?
  • HydroBlox can be installed at any depth up to 12”below surface level.

What is the size and weight of HydroBlox?
  • Each HydroBlox is 40” (long) x 9” (wide) x 2” (deep).
  • 13.23 pounds. (approx.)
Do I need to use pipe under HydroBlox?
  • No. HydroBlox will allow water to flow into and along the block. With pipe, a main outlet /carrier drain is required.

Do I need to use a geotextile?
  • No. Your backfill material should be in contact with the HydroBlox.
  • (A geotextile layer will clog and block up.)

Do I need to use stone on top of HydroBlox?
  • No. The root zone material should be in direct contact with the HydroBlox.
Can HydroBlox be used to renovate an existing field?
  • For sports field renovation projects HydroBlox can be installed in slit trenches. (See ‘slit trench natural turf’ data sheet)

How strong are HydroBlox?
  • Under compression, HydroBlox will carry over 102.41 tons/sq. ft.

What is the flow rate of HydroBlox?
  • Over 0.810 gallon/sq.ft./second.

Will HydroBlox dry out the turf?
  • No. HydroBlox has internal water storage, which helps to balance water levels in the profile.
typical intersection & joint
pipe & stone intersection & joint