Chris I dont own a Silvia but blonding in 5 secs would worry anyone no matter which machine they had.Originally Posted by 676C766D77686B73040 link=1263637267/0#0 date=1263637267
Blonding that quickly indicates to me that the coffee is offering no resistance to the water.
Have you tried grinding finer?
Have you tried settling the grinds after the initial dose then adding more coffee before levelling and tamping?
To slow the pour you have to, either grind finer or add more coffee.
This could be a sign of channelling.Originally Posted by 202B312A302F2C34430 link=1263637267/0#0 date=1263637267