I would guess that pouring a quart of hot water down the drain once a week will keep it clean enough for a very long time. Better if you pour directly into the drain cup if your machine has one, that way you'll notice a restriction before it makes a mess. Make the horizontal piece easily removable and just clean or replace it occasionally. I have a 1 foot horizontal run of 1" tubing and I've never had to mess with it. Not saying that I won't or that it's a good idea, but so far, it works here.

Ira

Water line is all setup, now if only my machine can arrive already! I ended up doing this differently than I thought - making a last minute change while I was at the hardware store.

I decided NOT to use John Guest/Sharkbite/QuickConnect etc connectors. Instead, I used PEX tubing and connectors, which matches what is in my whole home.

From the tee to the filter is braided steel, and I brought the PEX line all the way up behind my fridge as well - with another braided steel line from this point to the (eventual) machine.

Also chose a different route, going straight through the cabinet (instead of on the counter), and will drop down to the machine (as was suggested by another user).

Overall I'm VERY happy I chose to use PEX instead, and learned a new skill in the process.

QUICK QUESTION: since the smaller PEX is 1/2, the pathway ends up being 1/2 (tee) > 3/8 (braided, filter) > 1/2 (PEX run in basement, terminates behind fridge) > 3/8 (last braided that will connect to machine)

No issue with that right? As long as the last run to the rotary machine is 3/8, I'm fine? I was also told a pressure regulator is not necessary with my rotary machine by the seller. That's correct right?

Since pictures are better than verbiage, as they say... still need to drill the last hole (depends on the position of the machine).




Cut away the previous Pex 1/2" x 1/2" x 1/4" reducer/shut off, and replaced with Pex 1/2" x 1/2" x 3/8" reducer/shut off
A little messy under the sink, but this is a utility area (Might secure the BWT filter, but it's not moving right now)




Directly below sink (this is also where the stream flowed because I forgot to leave a basement sink valve open after I shut off the main and cut the reducer/shut off above - oops!). I didn't necessarily need a shut off here, but I couldn't find the regular Pex 1/2" x Male thread, so I just grabbed this instead.




Brought the Pex line all the way up (I may add a fastener clip here, but not sure it's necessary, as the pipe is pretty stiff on it's own). Look, ANOTHER shut off!




This is the view from the LAST cabinet where it will eventually drop (depends where I position the machine). Ideally want the braided steel hose to be concealed, so if the machine/cups do, I'll be happy. This is a 6' line, but I might change to an 8' line to give a little more wiggle room.

The entire line has been tested and no leaks! I'm very happy with the result and confident in the longevity of this setup. And I found out you can rent a Pex Crimper Tool and PVC pipe cutter for 4 hours for only $10! And they have these pex rings called ClampRite, which have a 'stopper' (think clamp ring 'for dummies') and removes the guesswork of spacing - and bonus, reveal if your cut was square. This solution ended up being the most cost effective, because those Sharkbite/JG connectors are not inexpensive.

THANKS GUYS! The H-B community is fantastic and I appreciate all your help!