Greetings! Been an 'almost never post' member for a long time, and this is the first time I've posted on the BDB. I have read the threads on the BDB carefully these past months with real interest, and finally took the step, joining you guys with a new BDB, upgrading from a 13 year old Elektra Semiautomatica that I had recentlypulled out of an 8 year retirement and rehabbed with *some* success (still have a leak I can't trace down). I would never have done this if it weren't for all the work you guys have put into exploring this machine, repairing it and modding it. Thanks to you all for your creativity and patient work; these threads are quite a read, and need an index of their own!!
Even before I turned it on, I opened the BDB up when I got it to begin familiarizing myself with the insides, as I hope to do the OPV/brass Pump and PP mods. I have one of the late ones (serial # 1850...) with the nuts on the boilers. Got it from WLL.
After a look around, I closed it back up and set it up and started pulling shots. I love the early results with the BDB in every way, and am taking some weeks to settle in before I do the mods. I have most of the parts and have walked through (in my head) a few of the procedures. I have some questions before I proceed, and I'd be grateful for any advice...
On the OPV/brass Pump Mod:
Peter you posted, "Any prosumer Brass OPV. I used one from a Vibiemme DD that I got from Stefanos. You will need to get the fittings for 4mm tubing, to attach the 4mm Breville tubing to the OPV. In the case of the Vibiemme OPV, it was a single 1/8" BSP-to-4mm tubing adapter. I used "quick connect" but you can use compression too. Ebay or Amazon for the fittings."
I have no experience with the tubing adapters, and when I search Amazon and eBay for these things, the choices are overwhelming. I get that I need BSP threading on the brass screw-in fittings, but when assembling, should I tape the threads with plumber's tape or just screw them together firmly?
Most of the adapters seem made for pneumatic (air) systems. Will these work in a high temp food grade fluid system like our espresso machines, or am I looking for a specialized adapter? I don't want to put in an adapter that will fail on me, obviously.
Did I see in one of the photos of your OPV install (Peter - post #182 on the 'Slayer Shots thread) that you had a right angle adapter coming out of the top? Can you give a good link for these adapters?
I also have a question on the PP Mod, which I will post in the 'Slayer Shots' thread.
Thanks for any help!