Re: Oscar rebuild and modification
The boiler drain is just to the right of the blue circle, its the little nut with the little plug in it. Without a one way valve there, youre right its the solenoid valve that holds the boiler pressure on the input side - but a one way valve there protects the solenoid from doing an extra job. Most other HX machines have one there too. I ended up getting 2 Giotto ones - which are made of metal not plastic - and put one at the HX and one at the boiler
The boiler drain is just to the right of the blue circle, its the little nut with the little plug in it. Without a one way valve there, youre right its the solenoid valve that holds the boiler pressure on the input side - but a one way valve there protects the solenoid from doing an extra job. Most other HX machines have one there too. I ended up getting 2 Giotto ones - which are made of metal not plastic - and put one at the HX and one at the boiler









You then need to adapt that to 3/8"BSP - which is the thread on the bottom of a PF. A right angle elbow is good.

Simple and effective (I could not be arsed removing the actual group head to tap them....)
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