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Mark II Carboy & Keg Washer


SKU# 40808

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Save time, water, and cleaning chemicals. The easiest way to clean your home brewery equipment.

This keg and carboy washer will make clean-up a breeze. Easily accommodates glass or plastic carboys to break down the toughest caked-on crud.
The base is designed to accommodate common homebrewing equipment while a submersible pump sprays cleaning solution down the sides of the vessel. Simultaneously wash your airlocks and stoppers hands-free.

Included adapters to clean keg posts and dip tubes (a soda keg disconnect and a short length of tubing are required but not included).

See our Krausen Killer Carboy Washing System for a complete starter set with cleaning chemicals.

Availability: In stock

Mark's Keg Washer

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  • Mark's Keg Washer
  • Mark's Keg Washer
  • Mark's Keg Washer
  • Mark's Keg Washer
  • Mark's Keg Washer
  • Mark's Keg Washer


Product Details
This keg and carboy washer will make clean-up a breeze. The base is designed to accommodate common homebrewing equipment while a submersible pump sprays cleaning solution down the sides of the vessel.

  • Designed by homebrewers for homebrewers.
  • Sanitizes or cleans kegs, carboys, buckets - greatly reduces time spent scrubbing at fermentation residue.
  • Hose barb attachments allow you to continuously circulate cleaning solution through tubing.
  • Shallow basin accommodates small parts like airlocks and stoppers.
  • Highly efficient reuse of cleaning solution means you can use just a fraction of the solution you would use for soaking fermentors, which saves money on cleaners and reduces water use.
  • Keg cleaning design allows you to pump cleaning solution through your liquid tubing, disconnect, dip tube, and keg all at the same time, without disassembling anything!

See our Krausen Killer Carboy Washing System for a complete starter set with cleaning chemicals.

This product should be used with a GFCI outlet or adapter for safety.
Additional Information
Support Documents:No
4.4 / 5.0
57 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Great customer service at Marks Kegwasher and of course, great sales and service through NB.
I had a pump issue with my keg washer. I contacted Mark directly who provided detailed instructions on disassembling the pump to help troubleshoot the problem. Turned out to be a broken impeller shaft. Mark quickly, and without question, sent me a new impeller.As far as its ability, I love it. I use buckets, NBs Bigmouth Bubbler, kegs, and of course brew pots. For buckets, kegs, and brew pots it is awesome. It doesn't however hold the Bigmouth Bubblers securely (mine are the glass model) so just to ensure safety, I closely monitor the washer when washing my Bigmouth carboys (note, I've never had any other carboy so I cannot comment on the standard style). I always clean my gear immediately after brewing/racking so clean-up with Marks Keg Washer is a snap. Before I bought this I was using my kitchen sink or in the summer months, the garden hose...not optimal. With the Keg Washer, I can fully sanitize a bucket while doing other brew tasks. In the end, it saves time and money, as one can use less sanitizer and cleaner, turn it on, and then just let the Keg Washer do the work.
January 23, 2016
Awesome product
I started looking for a cheap pump to power an immersion chiller, and found this guy. Called Mark up, personally, and found out that the new version was coming out (the one pictured here.) I waited for its release, and plunked down my $. Works great as a cleaner, and sanitizer, and the pump does double duty during kettle cooling.
February 21, 2012
Good addition
Time saver. Works well. Very happy with this addition to the brewery
June 19, 2017
4 months ago
Game changer
The Mark 2 carboy cleaner is a game changer! Cleaning kegs are carboys is a snap and it takes less PBW. I don't know how I've managed for the last 20 years brewing without it!
June 2, 2017
5 months ago
After One Year of Use ...
The Mark II Carboy and Keg Cleaner is still going strong. My wife stopped by the St. Paul NB store asking for gift ideas and someone there steered her toward this. I have used this at least thirty times in the past year for glass carboys (3-gallon, 5-gallon, 6-gallon and 6.5 gallon sizes), 5-gallon bottling buckets, some stubborn bomber bottles and have soaked stoppers and whatnot in the reservoir as well. Once you get going, you start looking for things to clean with it. It is hard to overstate how great it is to have a carboy cleaner with narrow-necked glass carboys and this design not only cleans well but also holds the carboy securely in place for the cleaning. I have used it with PBW and with Saniclean (low-foaming acid rinse - you really want this instead of StarSan with the Mark II, unless you are using it outside and don't car about foaming over). Be sure to follow the instructions about priming the pump. Wonderful product.
May 19, 2016
Getting the Job Done
Small-mouth carboys are really hard to get really clean. The Mark II Washer is a great help. Yeah, you still have to brush out the worst of the crud, but the rest of the procedure (PBW followed by SaniClean) gets the job done as well as it's ever gonna get done.
May 16, 2016
Use less pbw and water
Convenient! Use less pbw and water, set it and forget it
September 17, 2017
1 month ago
Works as described. No issues
Works as described. No issues with it.
September 14, 2016
Best investment I've made since the deluxe beer kit
I wasn't sure when I bought this if it would work that well. I'm very pleased. This thing flushes all hoses out, cleans kegs, carboys, and bottling buckets with about 1/5th the amount of water required without it. I hardly ever have to use a brush to clean the carboy after primary. A little PBW and 30 minutes on the washer and ready for rinse... Great product. Highly recommend.
September 2, 2016
Beats scrubbing
especially with that L shaped brush. Just add chemicals and let the pump clean the carboy!
June 5, 2017
5 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 13 questions Browse 13 questions and 19 answers
Has anyone used this unit to clean sanke kegs?
S A on Jan 21, 2016
BEST ANSWER: Yes, i cleaned a sanle keg with it and it worked easily and cleaned it very well!
Will this work with the wide-mouthed Big Mouth Bubblers that NB sells?
K F on Oct 5, 2015
BEST ANSWER: Yes, I used the Mark II to sanitize the 6.5 Big Mouth last week. You must remove the round, plastic support piece that is used for the glass carboys in order to place the Big Mouth on the unit. Although the pressure of the spray was not hard enough to dislodge the Big Mouth, I took precaution to gently hold it in place and turn it to ensure the spray covered all sides. Love the Mark II and can't wait to try it when cleaning the carboys.
Can this be used to sanitize bottles?
S W on Mar 23, 2016
BEST ANSWER: No, it won't work well for that. I'd recommend this one:

Will it handle glass carboys with the carry handle attached or must the handle be removed from the carboy before cleaning?
Brett B on Feb 5, 2016
BEST ANSWER: You'll want to remove the handle before cleaning.
Can this product be used with caustic and peracetic acid? I am concerned the caustic could in some fashion damage the submersible pump. Thank you.
Brian B on Dec 7, 2015
BEST ANSWER: The keg washer should work with those agents as long as they are mixed to the right proportions and the pump does not sit for prolonged periods in the solutions. It's designed to remove proteins from glass/plastic/stainless fermentors so something like PBW(TPP) is a safe option to use as intended. Using it with too high or caustic or perceatic concentrations could damage the item and sadly there is no report of it being tested so you might be exploring unknown territory. Hope this helps!
Will this work with a Sankey fermenter keg with the spear removed?
Bob T on Oct 21, 2015
BEST ANSWER: It should work if you take out the spear.
to clean a Sankey keg does it need to be disassembled?
A shopper on Jul 26, 2017
BEST ANSWER: If you're using the Mark II to clean it then yes. You must remove the sanke spear to insert the pipe coming from the submersible pump. If you're looking to clean and sanitize without the removing the spear I would suggest building a manual keg washer
Will this unit work with the FastFerment conical fermenter? The FastFerment is my primary fermenter, but I also have a 5 gallon glass carboy and a 3 gallon PET carboy which I know the carboys will work. Thanks!
Paul S on Sep 9, 2016
BEST ANSWER: Yes, this will clean the FastFerment as well.
Whats the power rating for the pump (GPH)?
P A on Aug 8, 2016
BEST ANSWER: It can move a decent amount of water - an uncited source says 520 gallons per hour. I would contact Mark himself to find out the exact amount.
Will it clean one handle Italian kegs that you sale?
B I on Jul 30, 2016
BEST ANSWER: Yes it will
Has anyone toyed with CIP spray balls yet? I see several around the $12-20 with 1/2" NPT female connection; I believe that can screw right onto the water stem, correct? really Just looking for confirmation of the sizing... thanks
Richard A on Apr 5, 2016
BEST ANSWER: It is 1/2 threading so if you get a spray bottle with 1/2" NPT threading it can screw right on. Works like a champ - though the product already works as advertised without one. Cheers!
Hello, my mark ii washer pump is not working. Where do I go to see how to fix it?
D R on Nov 3, 2015
BEST ANSWER: Not sure what it is doing and what troubleshooting fixes are available. You could try contacting the manufacturer directly with detailed info. If the pump will just not move water

make sure everything is open and set up right

otherwise if the pump has gone bad than replacement is the ideal fix.
Would this also work with better Bottle type vessels? If so, both 5 & 3 gallon sizes?
J M on Sep 14, 2015
BEST ANSWER: If the bottles you are referring to are carboys

yes it includes a runbber non slip attachment for use with plastic and glass carboys...works on every size except for 1 gallons. (3




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