The steam pressure gauge is around 1 bar and the boiler pressure gauge is around 10 bars with blind portafilter and drops to 0 when I release the pressure.
The steam/hot water is coming out of the blow-off/return hose not the inlet hose connected to the pump. When the pressure in the system is 10 bars no steam into blow off hose. I have really paid attention to what happens when I release the pressure...the steam appears to start sputtering from the steam boiler into the brew boiler through the upper silicon hose. Around the same time steam starts sputtering from from the steam boiler back to the OPV through the bottom silicon tubing and then through the OPV back into the blow off hose. If I drain the steam boiler through the hot water tap, I pull off about 1 L of hot water. The pump runs, fills the boiler and during this time, no backflow of steam. After a few minutes, likely when temp rises in the steam boiler and steam forms, then I get a backflow of steam. Is the heat exchanger just helical copper tubing? The only thing I can think of that could cause these symptoms is if there was a defect within the heat exchanger which is allowing steam to flow into the copper tubing of the heat exchanger and then in the directions described above. That would explain when I have pressure in the system, the steam at 1-1.2bars can't enter the higher pressure heat exchanger tubing. Just the thought process of an amateur though. PC -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To view this discussion on the web visit https://groups.google.com/d/msg/brewtus/-/IkJCElAS7KkJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/brewtus?hl=en.
