The BBHWRs are ideally suited for application in rural areas and not suitable for city areas due to water being a valuable commodity in the city environment and the need for using all available water without discharging any waste water.

  • Based on the BBHWRs application history, the following categories of end users have been using the BBHWRs: Farmers
  • Industries located in hilly or mountainous areas – Trout Farms, Vineyards
  • Private weekend / holiday houses
  • Golf courses

Note: All BBHWR applications require a water source with sufficient volume and mandatory terrain fall for installation of the Drive Pipe between the water source and the location of the BBHWR. For further details on these requirements please refer to our Leaflet – Document 6992 (product brochure).


Sufficient volume of free flowing, clear uncontaminated water – for volume refer to the BBHWR Leaflet.

Establishment of sufficient filtration facilities with fine mesh (Copper, SS or Galvanized fine mesh materials) at the water source end, prior to connecting Drive Pipe. A typical end user arrangement is via the use of a 44 gallon drum, with water coming in from the top of the Drum over installed filtration mesh and with an installed outlet at the bottom of the Drum – connected to the Drive pipe supplying water to the BBHWRs under fall and located at some distance from the water source.

Sufficient fall between the water source and the BBHWRs ultimate location. Generally a ten percent fall of the ultimate vertical elevation delivery point is required – this is generally applicable from 63 feet vertical elevation. For lower elevation a larger fall is required.

Note: For specific BBHWRs operational recommended data information please refer to our BBHWRs Leaflet on page 3.


Based on experience, we recommend the following details and time table for the installation of the BBHWRs concrete block:

  • Pour concrete over the prepared steel reinforcement, located inside of the prepared timber form work.
  • Leave the Concrete Base standing idle for two weeks, to enable the concrete to mature and gain its full strength (normally a full strength is achieved after 28 days of curing time).
  • Two weeks later install the BBHWR Unit onto the constructed concrete base and ensure you undertake the following: affix the BBHWR to the concrete base with a set of four galvanized spring washers and nuts.
  • Connect the Drive and Delivery Pipes
  • Install Snifter Plug
  • Adjust the Impetus Valve strokes for the required output
  • Leave the BBHWR in operation

Important: Water supply is required to be well fitted before entering into the Drive Pipe.


The water comes into the BBHWR compressing air in the Dome up to the point where the air pressure becomes greater than the incoming water pressure. At that point the water inlet Valve in the Dome closes and the Impetus Valve on the outside opens (Impetus Valve outside is opened and full water volume flows out).

The compressed air pushes the water up the hill. The moment it does this, the air pressure inside the Dome drops to the point where the water pressure coming inside the Dome becomes greater than the air pressure inside the Dome. The water flow pushes the Valve inside the Dome and opens it (Impetus Valve on the outside is closed). Water flows inside the Dome until the air pressure becomes greater than the incoming water pressure, valve inside the Dome closes and the cycle repeats itself continually.


The Inlet Valve is located on the middle of the base and the Dome sits also in the middle of the base (just above the Inlet Valve).

The Inlet Valve consists of the following parts:
a) Valve Stop Pin
b) Valve Spring
c) Valve Rubber
d) Valve Seat


The Impetus Valve is located on the outside of the BBHWR and consists of the following parts:
a) Impetus Valve Split Pin
b) Flanged Lock Nuts
c) Adjusting Nut
d) Adjusting Nut Lock Nut
e) Cage
f) Impetus Valve and Stem
g) Impetus Valve Gasket

The Impetus Valve assembly has the capability of adjusting its operational stroke rate. The Impetus Valve assembly is fitted on top of the base.


The BBHWR employs a set of three of the following flanges:

A. Drive Flange
For supply of water volume into the BBHWR

B. Blank Flange
Blanking of Delivery Port on the side not used for water delivery. The BBHWR Base has a delivery Port on each side of the Base. The Blank Flange is interchangeable with the Delivery Flange and its base side fitting is determined by the actual site conditions i.e. direction to which the Delivery Pipe is required to be run.

C. Delivery Flange
Used for connecting the water delivery line for supplying the water to the storage tank installed at the top of the hill.