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Description
Water service lines between the municipal water main and houses that have their service lines buried or installed above the frost line are susceptible to freezing in winter, especially during night time periods. These frozen lines can be time consuming and difficult to unthaw.
Aqua-Flo is a waterline freeze protection appliance that uses the principle that moving water does not freeze readily. Aqua-Flo maintains a continuous flow of water in your water service line 24 hours a day. This is accomplished by an automatic BLEED, CAPTURE and RETURN method. Water is constantly flowing, but is not being wasted into the sewer system.
Water is BLED from the house or municipal supply through an orifice into the Aqua-Flow 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.
Simply stated, this 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.