i have had the same pump for 2 1/2 years and i have always had that valve, thats a new one to me
The Flowmaster has many benefits. You can set your flow accurately and still maintain pressure at the brush. This is essential to ensuring a thorough rinse of the window. By using a flow on/off regulator at or near the pole you save water and battery power because the Flowmaster will sense the stopping of flow and stop the pump. By being able to stop the flow when you want to you will be able to move from window to window without spraying water where you don’t want it to go. It is critical that when fitting a pump to a window cleaning system that certain factors are taken into account to ensure years of trouble free performance from the pump. The most common problem with window cleaning pumps is that the user puts excessive demands on the internal pressure switch during use, causing the pump to repeatedly switch on and off (known as “cycling on the switch”) during the window cleaning process. This will rapidly cause wear and the pressure switch will fail prematurely. Care must be taken with any window cleaning system that “cycling” does not occur. By far the most common cause of excessive pressure on the switch is the use of a restriction valve on the window cleaning system-these are commonly fitted to allow the user to regulate the output of water from the pole. Most window cleaners wish to restrict the amount of water flow therefore they are at risk of very early pump failure because as they restrict the flow the increase in pressure can cause the pump to cycle at up to 100 times per minute. So by fitting the Flowmaster to the Freedom Trolley System we are ensuring that you work efficiently and own a system that will give you many years of satisfactory service.