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Low Volume/Slow water flow from group
Normal flow is 10ml/second:
1. 9 bar brew pressure
2. 0.7m metering jet
3. Brew valve
125ml
Less than 200ml in 20 seconds
#1 Service
Problem!
Probable Causes:
1. Clogged brew Valve
Cleaning
2. Restricted 0.7m metering jet
Water Scale
3. Restricted Flowmeter
Water Scale
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