Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: wash & go window cleaners on September 07, 2005, 07:31:17 pm
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Could anyone tell me where i can get a shureflow 12v 100 psi pump at a good price?
Because iv'e only got a 60 psi at the moment and need to upgrade due to a 2nd pole.
Any help would be appreciated
Thanx Tom
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I GOT MY ONE FROM WILLIAMSON PUMPS , GOOD PRICE 88.50 INC VAT DEL
SHAWN
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Hi Shawn
Thanks, Just looked at their website and emailed an enquiry.
Tom
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I have two 60psi pumps one for each reel with varistream controller.I thought about one 100psi pump for both but if it breaks down then two reels cant work where as two pumps one breaks down you can still use one reel
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:)i brought one on ebay 100psi shurflo cost £60 inc p&p from america paid for it friday here tuesday :D
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There is a misconception that pumps will produce the pressure they are described as-
i.e a "60psi" will produce 60psi when you plug it in, a "100psi" will produce 100psi etc. This is not so.
Pumps will only generate the pressure required to pump the water through the system, up to a point where the pressure switch cuts in and protects the pump by switching it off. Generally the "psi" stated is the pressure switch setting.
All systems have individual characteristics, and such things as hoze bore size, length of hose, number & type of connections, valves, height of brush etc etc all contribute to determine the system pressure. What is ideally needed is a pump that will generate the pressure required, that such pressure is well below the pressure switch setting, and that the amount of water (flow rate) AT THIS PRESSURE is sufficient for the user.
As systems have evolved, we at Williamson Pumps have recently seen the pumps generally used go from 60psi to 75psi, and now 100psi are the norm.
All pumps have a performance curve, and as the pressure it delivers increases, the actual flow of water decreases. The balancing act is to get both the pressure and the flow rate to suit the system.
Another problem to throw into the equation is where one pump feeds 2 poles. A standard 100psi pump may easily cope with the pressure required, but will it deliver the amount of water (flow rate) required to feed both poles?
Also, pump materials and motor duty cycles need to be considered. Many diaphragm pumps available are designed for Agricultural Spraying applications, and as such the materials of construction are not always condusive for pumping pure water for extended periods of time.
Sorry to get a bit techie, but hope this helps people understand pumps a bit more.
Martin
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Get on Clever Cloggs !
Dr Pump has spoken ;D ;D ;D
You lost me there , all i know is , i switch mine on and it pumps !
Rich P @ F ;D ;D
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I did appologise for being techie.....
So long as it keeps pumpin when you turn it on - no worries
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Apology accepted , but dont worry MartinB , if it does stop pumpin then i know who i'm gonna call ...... YOU !
Rich P @ F ;D
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Hi Martin
I had 2 variestream mk1 from you when I orderd them at Nec, can you email me your current unit price for mk2 including delvery.
Roy
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I did appologise for being techie.....
So long as it keeps pumpin when you turn it on - no worries
good post martin - what size hose bore is the best , to get best performace from the pump as most use a hose like triflex, them a thinner one up the pole - cutting down the flow rate somewhat .
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Hi Easy Clean
Thats a really good idea i never thought of using a second 60 psi pump.
Silly question but does it affect the battery 2 @ 60 instead of 1 @ 100psi ?
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No dosent affect battery at all
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As far as the pump goes, a longer 1/2" dia hose is better than a longer 6mm as less pressure is required to get the water through. Keeping the smaller hose as short as practicable is probably best.