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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: www.mrgutters.co.uk on February 28, 2006, 04:20:48 pm

Title: pump pressure
Post by: www.mrgutters.co.uk on February 28, 2006, 04:20:48 pm

can anyone tell me how to not blow my pump when stop the flow where i am working ...i know you can re direct the water somehow but am not sure how this is done any help will be appreciated ,...

shawn

Title: Re: pump pressure
Post by: Davie T on February 28, 2006, 04:23:04 pm

Simply buy a variestream unit and it takes care of your pump.

Title: Re: pump pressure
Post by: JM123 on February 28, 2006, 04:30:34 pm

Most pumps ahve an inbuilt pressure switch which will switch the pump off under pressure (usually 60-100psi)  Varistreams are good for reducing pump wear (as you can slow the pump down) and auto-compensate for working at increased height.  As the varistream can sense load (excess current drain) on the pump it will switch the pump off before the pressure switch cuts in (or in the case of most Shurflo pumps the pressure switch has already been disconnected so no pressure switch wear), a worthwhile investment as it will save water, battery charge and reduce wear and tear on the pump.  If you ave plenty of water to do all day anyway then I'd simply use an autostop hose connection as once you have disconnected it the pressure switch will turn the pump off anyway.  One f our systems is set up this way with no problems for over a year.

Title: Re: pump pressure
Post by: DASERVICES on February 28, 2006, 04:31:24 pm

  Shawn,

  I've got a varistream and have had no problems, cheapest place to get them
  is Cleantech.

  Doug

Title: Re: pump pressure
Post by: Roy Harding on February 28, 2006, 04:33:43 pm

Ian

Posted a pic of a bypass on this link.

http://www.cleanitup.co.uk/smf/index.php?topic=6997.0#msg51581

But varisteam is very easy to use and set up.

Roy

Title: Re: pump pressure
Post by: sair on February 28, 2006, 04:49:13 pm

 an eco flow shawn does the same