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Brass pencil jets size


davewindowcleaner

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3mm jets are twice the size of 2mm jets. We found we wasted too much water with 3mm jets as we turned the flow up higher to get a better stream. Rinsing was great though.

 

In the early days we used jets like these

http://www.wintecs.co.uk/catalog/pencil-5mm3mm-brass-each-p-1145.html?cPath=168_52

 

There was enough 'meat' on the jets for you to drill them out to 3.5mm if you were careful. I wouldn't go any more than that though.

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My thinking was the 3mm jets or more would make rinsing better and get the job done quicker.

 

Yeah I can see I would lose a lot more water if I took my time rinsing like I do with a smaller jets

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What water flow rate do you want to work with? Can you turn you water flow rate up? Depending on the pump 2mm pencil jets can give a flow rate from zero to 4 litres a minute. You might be averaging around 3 litres per minute depending on the hose size, length and height.

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