Workbench / Rolling Cart / 4-tap Keezer

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murrahjm

Supporting Member
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I'm still working on the details, but here is my garage workbench/rolling cart/keezer build!

Space is at a premium in my garage, and I wanted the ability to serve beer in the backyard, driveway, etc. I also needed an additional workbench, ideally at around the same height as my current work space. Also wanted it to be relatively load bearing, so I could throw heavy stuff on it, maybe mount a mitre saw or something one day, who knows. I also had a surplus of 2x4 lumber from my garage shelving project, so that was build item number 1.

Since I rarely brew the same thing twice I decided to go with three perlick 650ss faucets and a 3-way secondary regulator to provide independent carbonation of whatever I end up brewing. Also, with the flow control faucets I shouldn't have to learn the dark art of beer line balancing or worry about swapping out beer line every time I change the pressure (I hope). I was also inspired by a six pack of Left Hand milk stout nitro, so decided to go with a stainless steel stout faucet and beer gas tank.

Anyway, with those requirements and my trusty 7.7 (?) Cu.ft. chest freezer, I set to building. Now I'm no carpenter and my only tools are basically a circular saw and drill. Luckily it didn't need to be living-room quality, and it's all 90 degree angles so how hard could it be? (spoiler alert: I don't think there's a single 90 degree angle in the whole thing.)

Got the basic rolling cart frame put together, and nothing has fallen apart yet! Lots of lag screws holding this sucker together. Anything worth engineering is worth over-engineering.

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Went with Kilz Complete primer for the collar, just to ward out any moisture problems.

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Beautiful polished stainless steel starts arriving at my doorstep! I can't stop cleaning these things! 3-way secondary will be for the 3 co2 taps. Shiny new primary regulator will be for the beer-gas (using a second co2 tank I already have).

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Taps mounted, bulkhead adapters mounted for the gas lines, and regulator mounted. Chalkboard paint on the side panels, we'll see how well that actually works.

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Finally got the beergas! All the gas lines run, leak free I think! Oetiker clamps doing their jobs, but man these things suck when you have to take them off!

Out of curiosity, I did a test with my beer line. Flow control is supposed to be magic right? Don't need to worry about line length right? well too a point. 2 ft of beer line with 3 vol of co2 just sprays foam, flow control be damned. so there you go. got some ultra barrier coming eventually if it ever comes back in stock.

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Still needs some balancing, but vanilla chocolate porter on nitro is yummy! To do: run electrical, wire up inkbird temp controller, outlet for fan, dehumidifier, etc.

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Got a bunch done over the weekend, pretty much done at this point. I still want to add a hose off of the 3-way regulator to use for force-carbing or other random CO2 needs for kegs outside the keezer (purging, cleaning, etc.). Need to get a left-hand thread hose barb and a valve of some sort.


For the electrical I wanted to run the temperature controller, a couple of always-on outlets inside for a fan and maybe a light someday, and a couple of extra outlets outside the keezer for tools or whatever. I went with 4-wire 14-gauge cable, using the 4th wire (red) for the cold-switched lead. The metal flex tubing is probably overkill, but I figured what the hell. So the inside box is always on, and I'm just passing the switched red lead down to the outside plugs. On the outside I've got the one switched outlet for the keezer to plug into (probably should move that to the bottom plug so I can use the other outlet) and 3 always-on plugs. GFCI for the whole thing and a waterproof extension cord lead so I can roll it around and plug it in wherever.
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I didn't really like the look of my collar, and when I cut a hole for the temperature controller it was just a huge mess. So I picked up a sheet of white hardboard plank from home depot. 4' x 8' for $11, and I've got a nice, shiny, smooth, white-board looking collar cover. the temp controller is attached to the hardboard with the little orange clip things, and mounted with a couple of mostly-hidden screws and of course the shanks. It hangs down a few inches past the collar, so it also serves to hold the collar in place. I put some similar boards in either side and a small one in the back, so it squeezes everything together pretty well. Much better looking than the 2x4 underneath, so I'm pretty pleased with it at this point.
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Well that was a close one! Went out of town on the weekend, came back to check my beer on Monday and found everything flat! Turns out my old co2 regulator blew a gasket, co2 level 0. LHBS did a quick refill and sold me a new reg, so I'm back in business.

Added some chains to hold the tanks in place and laminated the co2 pressure chart for easy reference.

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quick test of the chalkboard, SWMBO shook her head at my terrible chalk skills.

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