espressoren wrote:Looks like there is no plumbing kit for it yet? I'm guessing at least for the water line you could use some sort of standard hose like one for a dish washer or water filter, maybe a 1/4" FIPS?

I plumbed mine today. A 3/16" barb fitting fits the inlet hose quite snugly. The machine was inoperable (before and after activating plumbed-in mode) indicating a water problem. After scratching my head for a while I jumpered the water reservoir level circuit and it brews again. Line-level pre-infusion works quite well.

A bspp fitting on the pump would be better but *shrug*.

(I looked at the mini plumb kit and it comes with a plate to jumper the water level circuit. A bit silly since there's a setting in the app for this.)

There will be an official plumb-in kit offered by LM in the very near future.

I received a bespoke kit today so I can plumb in the Micra when it arrives Monday for the next leg of the La Marzocco Linea Micra Espresso Machine Review. I wanted to include the line pressure pre-infusion as part of my review.

I did something similar with my Elektra A3 using mains pressure and an adjustable delay on make SSR and it worked very well. The La Marzocco solution is a bit more sophisticated and app adjusted which should make it user-friendly.

I will not be doing a 'how to plumb in' since what I have is not the official kit but will be testing the preinfusion functionality. I will grab a few screenshots of the app setup since that is production.

It is a simple process to plumb in and drain out. If you can turn a wrench and screwdriver, you can plumb it in and out. You could look at the La Marzocco GS3 or Mini plumb-in instructions/kit and get a very good idea of the physical process.

PaulTheRoaster wrote:I plumbed mine today. A 3/16" barb fitting fits the inlet hose quite snugly. The machine was inoperable (before and after activating plumbed-in mode) indicating a water problem. After scratching my head for a while I jumpered the water reservoir level circuit and it brews again. Line-level pre-infusion works quite well.

This is actually quite welcome news for the few owners that plan on trying out the line pressure preinfusion without plumbing in. The preheat coil wrapped around the steam boiler beneath the insulation should yield a low flow preinfusion "source" that will roughly match the steam boiler pressure. Once I get my turn in line, I'll verify this with a blind basket and then see how it translates to results in the cup. I also plan on plumbing in, so I should be able to get some data on the difference between faux preinfusion using the tank and true line pressure preinfusion when plumbed.

Cheers!

- Jake