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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Spruce on April 20, 2006, 10:50:48 pm

Title: Varistream
Post by: Spruce on April 20, 2006, 10:50:48 pm

Hi

I have been advised by a very kind member here that a Varistream reduces the voltage going to the pump and hence can be regulated to a water flow rate that suits the person operating the pole, and that the flow rate will remain constant at various heights.

I have also been told that the unit is 'sensitive' to the flow rate being switched off at the pole and switches the pump off as would a pressure switch.

Please can someone tell me if the pressure that the varistream cuts the pump out is also reduced accordingly. I have a 100psi Shurflo pump so so am asking if this could be reduced to say 50psi etc.

Sorry, this may seem to be a stupid question to some of you.

Thanks in advance,

Spruce

Title: Re: Varistream
Post by: Moderator David@stives on April 20, 2006, 10:54:51 pm

the short answer is yes by means of the small blue dial inside the varistream

Title: Re: Varistream
Post by: Tim Morton on April 20, 2006, 10:55:16 pm

Hi spruce, I cant say i have measured the pressure at the end of the hose, but i have a 100psi shurflo pump and i can say that it builds up to the same pressure no matter what the flow rate selected on the varistream, whether 1 L per min or the full 6 Lpm.
There is a control inside the varistream box that  allows you to set the cut off pressure lower if you want to.

Tim