WD Industrial Aqua-Flo Water Line Freeze Protection System

Aqua-Flo is a failsafe, energy saving appliance that incorporates proven principles that
ensure the prevention of water service lines from freezing. Despite the problem and cost involved in the continuous bleeding of water through each service line, it is a fact that flowing or moving water does not freeze readily.

 

WD Aqua-Flo maintains a continuous flow of water 24 hours a day. This is accomplished by a BLEED, CAPTURE and RETURN method. Water is constantly flowing, but not from the tap into the sewer system.

 

Water is BLED from the house or municipal supply through an orifice into the holding tank. The water level in the tank increases and the trapped air is released through an air release valve and/or an activated carbon air filter. At a predetermined tank level, a pneumatic switch is tripped. The motor starts and the pump forces the water through a check valve into the stream ahead of the orifice and then into the service line and water main. The orifice bleeds the water at a rate of about 1 litre per minute. The filling time is approximately 45 minutes, and the pump down time is about 4 minutes. One cycle lasts about 45 minutes. This cycle is repeated over and over again in a closed, sterile system.

 

The CAPTURE and RETURN characteristics of Aqua-Flo must be emphasized because these features uniquely make the Aqua-Flo a foolproof system. As the water BLEEDS into the tank, it absorbs some heat from the surrounding air. Combined with the friction in the pump down cycle, the water temperature may increase by 2 to 4 degrees Celsius. When this warmer water is pumped back at a high velocity, any annular formations of ice that may begin to form in the BLEED cycle are scoured off so that each BLEED cycle begins with as full a diameter of warmer water as possible. It is this phenomenon that eliminates the likelihood of a water service line freezing up with the Aqua-Flo.

 

Simply stated, this amazing appliance maintains constant flow of water through
a single service line and returns the water into the system through the same
water line without any loss.

 

During periods of electrical or mechanical failure, flow is still maintained by OVERFLOWING the tank into a drain. This is the Aqua-Flo’s back up system, something that no other freeze protection system has.

 

Advantages of the WD Aqua-Flo System

For a Municipal Authority:

 

Greater water consumption often requires expanded headworks, larger reservoirs and larger supply mains to supply an ever increasing demand for water. Indiscriminate bleeding places a burden on sewer treatment facilities particularly during the winter months. A water and sewer system designed with a “bleed and return” system as the Aqua-Flo could eliminate costly water and sewer upgrading projects.

 

As water bleeds into holding tank in a warm home, it absorbs heat and is returned to the water main, this would help reduce municipal heating costs where water must be heated before distribution

 

There is less water to treat, so expensive savings can be realized by municipalities

 

A significantly lesser amount of cold diluted waste water needs to be treated. It is easier and cheaper to treat normal strength warmer sewage than colder dilute sewage.

 

There is less danger of frozen sewer lines as well

 

Aqua-Flo is the sensible answer to water conservation and resultant energy and cost savings

 

Aqua-Flo increases the storage capacity of any water system. Aqua-Flo is as close as
anyone could come to achieving a perpetual motion water pressure system because individual units and households help pressurize and maintain water pressure in the entire system