u/Powerful_Button_7753

So my GCP developed low flow from group head - initially flow from steam wand (without steam button) was strong, so i was thinking it was sediment in solenoid valve..

I tried the clicking steam on a off while dispersing water through steam wand to click the solenoid on off - to no avail

I then took out the boiler, dissassembled OPV, solenoid valve and boiler and cleaned with descaling etc.

I reassembled and now we are at point of the video.. now flow is also low from steam wand.

I’m thinking of just replacing boiler + solenoid as I’m thinking that might fix it?

But now I’m also wondering if it could be the pump?

What kind of experiences do you have?