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Increasing water flow rate

How do I adjust the machine to increase the water flow rate to the coffee basket? I have a La San Marco 2 group head manual. My water flows at about 250ml in 7 seconds. Far too fast meaning that I am compensating to get my 60ml in 25 second shot by grinding very fine. The water pressure is set at 9 bars. How to I lower the water flow rate?

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  • NigelB37 Sep 17, 2008

    If I lower the pressure, won't it effect the coffee extraction? I have read that lower than 9 bars will lead to underextraction of the coffee.

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With a flat head screw head driver adjust the pump pressure. The screw is on the left side of the image below.

increasing water flow rate - 2_26_2013_8_04_49_pm.jpg

Posted on Feb 26, 2013

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YOU CAN LOWERET PRESSURE ON THE WATERPOMP.

Posted on Sep 16, 2008

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1 Answer

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