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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Gordon Watson on June 01, 2005, 04:06:40 pm

Title: Best flow-control valve
Post by: Gordon Watson on June 01, 2005, 04:06:40 pm

What is the best flow-control device at the pole end? My cheap, 1/4" blue-and-white plastic ball control valve is a little stiff and awkward.

Thanks,
Gordon  :)

Title: Re: Best flow-control valve
Post by: MartinB on June 01, 2005, 05:12:14 pm

Valves at the brush end will always put a backpressure onto the pump and cause pressure switch problems.

Take a look at the new Varistream from Williamson Pumps on http://www.williamsonpumps.co.uk/varistreamspec.pdf.

This unit controls the speed of the pump, and also will automatically compensate for the height the brush is at, giving a constant control of the flow.