How to Annihilate Slimy Goo in Your Bulldog’s Water Bowl.

I’ve got BIG news, especially for those in the wonderful, all-too-often slimy bowl, world of Bulldogs! It’s a huge question being asked by Bulldog lovers – “Why does my dog’s bowl get so slimy?” Just today, a reader on our site asked:

I just recently adopted a 5yr. old  Bulldog.   He’s a great dog, but….his drool.   I can deal with it when it’s coming out of his mouth which isn’t often, but it’s emptying the water bowl that turns my stomach.    I can take vomit, blood, feces, but I have a hard time emptying his water bowl because the bottom is filled with very thick saliva that just slides out slowly.  I can hardly write this as the thought makes my stomach churn.   Is there anything I can give him, feed him, any suggestions on how to loosen that saliva?  I”ll try anything.

- Bulldog Owner, Ellie

Using copper to annihilate slimy dog bowls.Talk about frustration and disgust! I think the biggest upset for me concerning the whole “slimy bowl” thing is the fact that I have to empty my Bulldogs’ bowls before the water ever even runs out because they’re full of slime. It’s a big waste of time and just another run-around that I don’t need.

Our Bulldogs definitely create their fair share of gooey slime in the bowl. That thick layer that forms around the inside wall of the water bowl-NOT healthy for my dogs and NOT fun to clean!

So, over the years, when I get these questions about slime and how to get rid of it, the popular idea of switching to distilled or R.O. water has come up as a possible fix. The theory is that by switching to a “clean” water, or water with zero sediment(minerals), we can stop the gnarly flow of slime from our bullies’ mouths to the inner wall of the water bowl – not to mention all over our homes.

Though I personally liked this idea and it’s been gladly adopted by many Bulldog enthusiasts, the science behind this method is by no means infallible. It just hasn’t been proven. The only proven method to stopping slime build up is introduced in this next paragraph.

The CuBowl: It’s Elemental My Dear.

Dave + Kristen - Creators of CuBowl

Dave + Kristen – Creators of CuBowl

The CuBowl is an ingenious idea conceived by David Nogas and Kristin Smart. This water dish for pets incorporates copper(Cu) the 29th element on the periodic table of elements making excellent use of it’s antimicrobial properties.

In the video linked to their kick-starter page for their product, Kristin explains how she and Dave were tired of the annoying slimy layer constantly forming on the inside of their dog, Xavi’s water bowl.

Kristin’s lucky she doesn’t have a Bulldog – their bowls are like slime production warehouses!

The elimination of the slimy coating is amazing, of course, but Dave and Kristin’s copper bowls have even more to offer. When chatting with Dave about his and Kristin’s CuBowl, we both agreed there is an undeniable, proven science behind the effectiveness of their copper-plated pet bowls.

Copper is beautiful, we all know that, but did anyone stay awake in science class long enough to hear teacher mention it powerful anti-microbial properties?

When asked about these anti-microbial properties in copper, Professor William Keevil, microbiological researcher and Head of Environmental Research at the University of Southampton recently said, “Germs can survive for weeks and even months on stainless steel and plastics, but research suggests that those same germs die very quickly on a copper surface.”

The Bio-Film Destroyer

Does anyone recall being schooled on the oligodynamic effect? Me neither, lol. This is the best part! If you watch this super scientific, but not at all boring video, a dude in a lab coat will make this oligodynamic effect easy for us simple folk to understand.



Basically though, and I’m paraphrasing, the microbiologist in the video explains how our dogs’ tongues create this bio-film, often loaded with harmful bacteria, fungi and viruses that ends up coating the very bowl they drink from day to day.

He further demonstrates that copper’s oligodynamic effect destroys and prevents the slimy bio-film that gets caked all over the water bowl!

This news is so exciting you might even begin thinking it’s newly discovered, but not so. The benefits of copper are ancient history. Did you know the Aztecs treated sore throats with copper, while Persia and India applied copper to treat boils, eye infections and venereal ulcers? How could we ever have forgotten how important this God-given element is to the health of humanity and our pets?! Living in a culture that demands more for less will help a person forget real fast, I suppose.

Purchase The CuBowl Here!


The Copper CuBowl is Superior to Stainless Steel.

Why Copper Bowls are Better Than Stainless Steel.

Left: A bacterial lawn formed from both standard bowl samples. Too many bacteria to count Right: One CuBowl sample had zero viable bacteria. The other had a small amount of viable bacteria, approximately 1500 CFU per ml

A recent study showed copper’s natural antimicrobial properties are capable of annihilating over 99.9% of certain bacteria within only 2 hours of surface contact. That study also proved that when adenovirus, a promoter of respiratory diseases like kennel cough(bordetella), are exposed to stainless steel they can survive, but copper effectively suppresses those virus particles to the point of complete inactivation!

As noted on David and Kristin’s kick-starter page, microbes such as E. Coli can survive for weeks on the surface of a stainless steel bowl. Now, before learning about how cool the CuBowl is, I loved stainless steel bowls for our Bulldogs. I’ve recommended stainless for years over the use of plastic and ceramic bowls, but it’s time we all take advantage of this timeless, but recently-forgotten technology – the 29th chemical element, copper.

Sure, stainless steel has a few benefits. It isn’t porous, so it’s not as convenient a host for bacteria as a plastic pet bowl might be. Stainless steel bowls are attractive. They’re slightly more affordable than copper-plated bowls. However, in comparison to the incredible benefits provided by that of a copper bowl and its potency against all kinds of harmful microorganisms and bio-films, the use of stainless steel falls short.

I recommend the continued use of Stainless Steel Bowls for dog food, but every Bulldog owner should upgrade their water bowl to Copper!

21 Responses to How to Stop Slime in the Water Bowl

  • Yan

    Not sure if author is ignorant or what.
    What about copper oxidizing in water and producing patina of lead, variety of salts, free radicals and copper sulphate?
    Modern copper kitchenware is steel plated for same reason.

  • Anna

    I am about to get one so I will let you know 🙂 I’ll post it on my instagram eventually haha @mybulldoglilly

  • Stella

    Is there a difference with having the bowls on the floor or raised? Is one better than the other? I’m concerned with bloat and still trying to make a decision.

    • Dan Weese

      Lots of bulldog owners report their bully gets less gassy when eating or drinking from an elevated bowl. I think it can definitely be a great thing for certain bullies but our’s have never used the elevated bowl’s and we’ve never had any problems with extra bloating or gassiness. I would be curious to message David, the creator of the CuBowl and ask if they’ve considered this though.

      • Stella

        That will be great Dan! Will wait for a response.

  • Krista

    Not to sound stupid but this bowl could seriously change my life! A small part of my life, granted, but this is huge. Has anyone tried it yet? I mean, I understand you can’t go around all the scientific facts of copper and that oliogodynamic affect, but just wondered.

    • Dan Weese

      Krista, the folks at CuBowl sent out bowls for a bunch of people to use and share their experiences with it. Here’s a link to those instagram followers who have used the bowl:

      As for Bulldogs that have used the bowl, I don’t know of any just yet. I would love for those Bulldog owners who have ordered their bowls to come back to this page and share their results. Also, Dave sent us a large, no-tip bowl for us to try with our bullies here at home. We’ll be getting the bowl in a couple of days and plan to put it through a scrutinizing test! We’ll get back to everyone with the results. Dave and Kristin are good people though and like you said, the science is there for copper bowls. No more slime!

      • Dan Weese


        We’ve used our standard sized cubowl since April 2016 and it really does do what it says it does. The slime is gone and the water stays cleaner longer. I love the fact that all of that bacteria is killed in this bowl too.

  • Krista

    Great article. Thanks for sharing. Here I was thinking my bulldog was abnormal or something because of all the slime I would find in his bowl. Even after one day his bowl is covered in a thick layer. I was actually cleaning his bowl every single day because if I waited even a few days it was so much harder to clean up. I feel better now to know he’s not the only bulldog doing this!

  • Kelly

    Just ordered mine and am super excited to see how well it works!!

  • Sara Price

    Very nice article. Still hard to believe-no slime whatsoever with these copper bowls?? Sounds like heaven if it really does work.

    • Dan Weese

      Oh yes, there are multiple reviews that claim absolutely zero slime after switching. This coming from users who habitually scrubbed their stainless steel dishes multiple times per week.

  • Rod Hilton

    I actually just got a couple copper bowls in a set on amazon not long ago, but they have a lacquered finish. Does this mean the scientific stuff and antimicrobial effects won’t work because of the finish that covers the copper?

    • Dan Weese

      Rod, great question. I was discussing the CuBowl with Dave Nogas, I brought this up because I was seeing a few lacquered bowls available in various venues. Without question, Dave let me know the lacquer finish totally defeats the purpose of the natural benefits of copper. I believe some of these manufacturers lacquer the bowls in an attempt to avoid the natural tarnishing that can happen over time with a copper bowl, but if the cleaning method is followed as directed on the kickstarter page, cleaning is said to be quite simple: “CuBowls are hand wash only. You will find it very easy to clean and rinse out your pet bowl when it doesn’t have bacteria glued to all over the inside!”

  • jenny clements

    I tried one that works with those carbon rock filters and it claims to get rid of slobber too. It’s been “ok” so far, but I think in truth it doesn’t really get rid of the slobber. The gravity feed bowl only allows a small amount of water in the bowl and therefore any slobber sort of gets lapped back up by your dog while they drink. Mine’s plastic too though which I know is bad now. Maybe I’ll try this bowl next time around.

    • luvmybully

      We have that bowl too! Our problem is that debris and mold are starting to get inside the water reservoir. i like how this copper bowl is gonna be so much easier to clean and actually does kill bacteria. The carbon in mine is cool but it doesn’t kill germs, bacteria and viruses.

  • John Wize

    obviously copper is going to work way better than plastic or stainless steel. I work at a mill and we work with copper designing, manufacturing and shipping for lots of different firms. They tell us about all the antimicrobial stuff in training, but the cool thing is that a few of us actually get to take home some of the trimmings or parts left over from production now and again. After reading this blog, I think I’m going to form me a nice water bowl for our two bulldogs to give this thing a try.

    • Dan Weese

      Just reading through the comments and was curious to see if you ever tried this. Even if you just dropped a clean sheet of copper in the bottom of the bowl I know it would have a positive effect.

      • Ron

        I have a stainless steel water bowl for my Kitty and it recirculates with a pump….. Wouldn’t it be great if they made one out of copper?

        So…..  I’m going to try a “test” on my steel bowl….  I’m going to put three pennies in it and see what happens!  Wish me luck!

        • Dan Weese

          You should totally let me know how that works out. I hope your animals don’t eat the pennies though!

        • Lyndsay

          I think the pennies need to be made before 1982 so there is a high enough copper content.

          I read about using them in bird baths and that’s where I heard about the year.

          I’d like to try that too but I’m sure the pennies would find their way into someone’s tummy. I wonder if I could glue them without causing harm from the glue?

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