DIY How To Replace Undermount Bathroom Sink Bowl

[@nathanmcintosh1153]

Thank you for not spending the first 5 minutes of the video introducing yourself and telling us what you're going to do. Simple video and straight to the point. Love it!

[@wendellcurtis9279]

Thank you for this video. It was just what we needed to DIY our vanity sink! I was not at all confident about doing this myself, but watching this gave me the boost of confidence I needed to give a try, and it worked great!

[@nicholasaguila4382]

This video was so helpful! After my daughter accidentally dropped her speaker in the sink on Christmas Eve, I was able to replace it for the first time thanks to your tutorial. Really appreciate the guidance!

[@hangman1128]

Just a tip for some. You can dry fit into the correct position and make a 2 small marks on the inside of the hole from and side as well as the sink so you can line them two marks up so things are perfectly centered without having to reposition once contact is made.

[@mic4725]

Good tip. Thanks for sharing.

[@bettina868]

I’m replacing my broken undermount sink with either a drop in sink or vessel sink so I don’t have to go through this again the future! Thanks so much for this excellent video - it’ll help me get the broken one out!

[@SRVToneify]

Thank you for this video. I ended up using two putty knifes, leap frogging them as I went around the basin. Made getting the shims in MUCH easier. Still rough going at first. Just wanted to comment to help out others.

[@mic4725]

Good tip! Thanks for sharing.

[@diannegerhauser401]

Thank you for the great video! You saved the day!!!! Hubby had better luck with his linoleum tool than his putty knife, and after a few tries in different places he got it through the glue. After that it was easy to work around the sink. He did use a hammer and bust out most of the sink before since it was already broken. Wear heavy gloves so you don't slice your hand.

[@mic4725]

Glad it helped! Yea, putty knife, linoleum tool, some have used an oscillating tool, whatever works to break the glue and not damage the top is the key. Then it’s just clean, clean, clean and glue in the new bowl.

[@davidventura660]

my favorite part was when his 'assistant' whispers, "I thought you weren't going to talk" with a chuckle.. thanks for the video this helped me perfectly prep for my job!

[@mic4725]

Bloopers 😁

[@angelperpinan]

Thank you for excelente video I need to do in one but what de glue for install ?

[@mic4725]

As I mention in the video I used Black Mamba.

[@foxcm2000]

I've got the bowl part started.. since I accidentally broke it! Thanks for the video. It's a solid start.

[@hank1475]

Bruh, you the GOATS when it comes to taking out under mounted sink. The metal paint scrapers and shims were perfect.

[@markcampbell6089]

Thank you for this video. I could not have successfully replaced my cracked bowl without it. You weren’t kidding wrt how hard it is to initially break through the old adhesive with a putty knife. Were I to attempt this again, I would try either heating the blade before trying to push it between the sink and the countertop, or I might try dipping the blade in the denatured alcohol to facilitate penetration. For anyone attempting this, beware, the solvent is highly flammable, so keep it far from any heat source! Thanks again for a very helpful video!

[@mic4725]

Glad the video helped. It’s definitely a low budget no frills video, but if helped someone out, that's great. And yes the old adhesive is tough to work through. Especially if it has both backside adhesive and bowl side finishing silicone. That’s two agents that need to be pushed through. Again glad it helped. Thanks for commenting.

[@paulhease1007]

Thank you for this. About to embark on this project. There's always a first time.

[@rosycheeks16]

Thanks!!! My husband is going to give this a go now! I'm tired of looking at an old chipped sink. First a trip to Home Depot. :)

[@firstlast4100]

Great , clear , descriptive video ! Thank You 🍻

[@hacksaw]

Getting ready to do one so I’m just doing the homework, great video. Think I’m gonna hit the inside edge of the basin with painters tape in case adhesive squeezes inside

[@mic4725]

Good idea, thanks for sharing it.

[@david-wi2wh]

Well, I followed you video, mostly. Sink is out. Tomorrow am I remove the remaining caulk. So far so good.

[@Chowdown777]

Thank you, after cutting all around with a large thin box cutter for 15 min. I knew there had to be a better way. This worked in about 10 min.

[@zuzu2416]

About to dive into a sink replacement project. Brand new porcelain sink in a double vanity. Remodelers damaged the sink so now we are going to do the replacement ourselves - thanks to your excellent video!

[@LivingTheLifeRetired]

Thanks a lot. I was wondering if I could change my sink myself and it looks in the realm of possible - if I can find the right bowl.

[@BasicCanadian]

I really enjoyed watching this video about replacing a sink, keep up the good content.

[@jaimecolon6437]

Thanks for the advice.The putty knife made it easy !!

[@jessiemk9039]

Super easy to follow instructions!! Thanks!

[@Turboman62]

Very good video! I've got to do this too, and this very descriptive video helps a lot. Thanks!

[@michaelchan877]

Is it just me but does it feel like denatured alcohol and black mamba are difficult to find these days? What's the alternative to denatured alcohol and black mamba?

[@tammydallavalle2107]

I dropped a glass bottle in mine and cracked the sink.now I need to replace it but have put it off because I'm not sure what to do first. Hope this helps me

[@YouTh3r3]

That just happened to me. I got a hole on my sink. Did you end up replacing it?

[@bossboyent]

Thanks for your vid man. Just what I needed

[@lrh57psi]

Excellent video. Great information. He should have more likes. Thanks for sharing.

[@N.I.C.K.]

How much weight will that sink hold? If it’s filled all the way fill with water will it still hold?

[@mic4725]

Did for me. The adhesive is pretty strong stuff.

[@1999pineapple]

Thanks to the video, we got the sink out and are ready to install new sink. Is this the name of the black mamba sealant? Black Mamba FHG High Tack - Superfast Mono Component Polymer Sealant Cartridge - White, Single - Found this on Amazon. Thanks!

[@mic4725]

@@1999pineapple Yes, that’s what I used in the video.

[@AdelmoDaza-c3f]

Donde se puede encontrar

[@Rhiannon.]

Dude thank you so much! Your instructions were very thorough!!!

[@wstt4]

You said you used Black Mamba Adhessive bc that was used before at that spot. What adhesive would you recommend if it hadn’t been used before? Some say 100% silicone while other say liquid nails, while each of those says the other adhesive won’t be strong enough to hold it long term. I need to reattach a porcelain bathroom sink that is sagging and about to fall. Can you say what would be the best adhesive? Thanks.

[@mic4725]

Thanks for the comment and good question. There is a lot of adhesives out there for all different tasks. The best adhesives would be the ones designed and rated to do the specific task. In this case, hold a porcelain bowl to a countertop. Make sure the adhesive is rated to bond to porcelain and whatever your counter top material is (granite, quartz, wood, etc.) together and that it is meant to hold a bowl in place. And is rated for the weight of the bowl. Is silicone or Liquid Nail rated for that? Idk, maybe, maybe not. An adhesive that's been manufactured and tested to hold bowls in place is what you want. To use something else might work or it might result in the issue you are having of the bowl pealing away. And even if you could use something like silicone or a liquid nail type product, it takes a long time to set making the install frustrating. Would I use something different then or next time? No and no; no need to. All I know is I did my research on it and used Black Mamba and it worked. Set super fast and still holding. IMHO there is no need to use anything else. Another brand that's just like it? Sure if it exists. I don't know if you are thinking of just applying something with the bowl as is and trying to press it back into place. You could try, but it probably will not last. Something has failed. Do it right. Take it out, clean all surfaces and remove old adhesive. Inspect the surfaces for damage and if none, then install new adhesive and bowl. If that was your plan anyway than you are on the right track. Hope it goes well.

[@chengg02]

How about a multi tool for initial cut in?

[@davek2609]

Thanks for the video. I have to do that also but mine is attached with silicone and clips. I'm finding it hard to remove the last film of the old silicone.

[@mic4725]

Silicone is tough. Try softening the residue with the denatured alcohol first. Use a brand new razor and change it a couple times while working. Mild heat (hair dryer, heat gun) may help while razor scraping.

[@jonathanellis5886]

My granite counter top has a cloth mesh on the underside. That has to go before reattaching the porcelain bowl correct?

[@mic4725]

That cloth mesh is a fiberglass cloth and resin. Usually put on to the underside of granite with a lot of veins to add stability during shipping, installation, etc. Attaching right to the mesh might be ok, but I’ll be up front and say I don’t know if bowl adhesive is rated to attach to the mesh. It’s possible the adhesive could soften the fiberglass resin and create adhesion issues down the line. The safest bet is to remove the mesh and resin in the area the adhesive will make contact. If you are using Black Mamba you can also reach out to the maker, MPI Solutions through their website and inquire if the adhesive can be applied directly to the mesh and resin. Removing it would give a nice clean surface to attach to and would certainly be the better installation method.

[@tefl0nd0n187]

If you successfully remove a sink bowl from a different vanity, would one be able to reuse the bowl?

[@mic4725]

I don’t see why not. Just make sure to remove all old adhesive and get the edge of the recycled bowl super clean.

[@lucky7988]

Good Video 🎉Very helpful! Thank you!

[@oliveraisblessed]

how come you didnt show how you hold the sink after applying adhesive?

[@doppybeanie]

Awesome very clear instructions ! Thank you!

[@mic4725]

Glad it was helpful!

[@timsharonlockwood9688]

Excellent Video, thank you!

[@jonnydwolf]

My under mount was really in there, not sure which silicone they used. I ended up breaking the sink out. The real bear has been getting the old silicone off. It really has been a pain, I’ve tried acetone, isopropyl alcohol, vinegar, sandpaper, razor scrapping, paint thinner, wd-40 , wow. It almost seems like all the residue is off. Not sure it’s all off!! I can’t see anything, but is swear just when I think it’s all off, I feel something rubbery. Anyway, I’ve spent 4 hours on this and I’m about to make a go. What could go wrong 🤦‍♂️

[@johndunworth7942]

Very helpful, thank you!

[@warriorworkstraining]

Do you think E6000 is a strong enough adhesive for this?

[@mic4725]

E6000 is more a craft, small project adhesive. It could possibly work, but personally I wouldn’t trust it as it’s not designed for this application. A sink bowl is going to put constant pull on the adhesive for years. The adhesive needs to handle the application. If you are going to purchase and apply an adhesive anyway, go with the Blank Mamba or another bowl rated adhesive.

[@warriorworkstraining]

@@mic4725 Thanks. I found some Black Mamba and it worked great! Thanks for the vid.

[@mic4725]

@@warriorworkstraining glad it worked!

[@johnkosanovich1365]

Here am I thinking that I have to clean the top surface while lying on my back underneath, lol

[@salahabdala7156]

Thank you that was really helpful

[@lamiyajahan3815]

Which glue / you used?

[@mic4725]

As I stated in the video it was Black Mamba adhesive.

[@jefflukowski9246]

Great video. What are your thoughts on homemade brackets/clips that hold the bowl up from the underside? My install looks like someone took some 1”x2” pieces of countertop and fabricated an L-shape bracket all siliconed together. They used 4 of these on the underside and then bowl is siliconed to the countertop as you showed. Not sure if I need to also use those L-shapes brackets again.

[@mic4725]

If you are asking if you can do away with the brackets and use silicone only, I think you will need the holding power of the brackets. Silicone is not rated to hold the sink by itself. If you use a rated bowl adhesive like the Black Mamba or similar you could do away with the brackets.

[@johndunworth7942]

Thanks, mine is the same,. I’ll do away with the brackets and use Black Mamba only.

[@jamesbirch8309]

Tried to follow the procedure, but no way could I get wedges or anything else between the countertop and bowl. It appeared to be bonded with epoxy, probably from the factory. Eventually had to break the bowl along the hairline cracks and chisel out most of the rim of the bowl. Also used a hand-held grinder with a masonry cutter and wheel to remove last traces of the bowl. Then had do build up the underside of the countertop where the epoxy had taken some of the countertop itself. The rest of the job went okay.

[@onthebeat9583]

Definitely a Black mamba advertisement

[@luismanrique5373]

MVP right here^

[@pablocastro2210]

Very informative video. Thanks,

[@manna06]

Great job thanks

[@projectmanager442]

great vid. life saver!

[@saharchreim5657]

Good job thanks.

[@virginiaspeciale8641]

Forget it, I can’t do that.😥

[@benphartine]

Oh but you can! The only thing stopping you is 🫵. All the Best, you CAN do it 👍

[@rubberman7665]

The reason I’m replacing the undermount is because my child dropped something in the basin to crack it. I’m hoping that won’t happen again, but who knows. Black Mamba sets dramatically quicker than silicon, BUT how difficult is it to remove if I need to do this again someday? That’s my fear.

[@mic4725]

The bowl I removed that was in the vacant opening in the video was originally set with Black Mamba. Removing as I describe was not overly difficult. The hard part was breaking through the edge with the puddy knife the first time like I mention. After working around and breaking the seam, it eventually dropped. Then the cleaning was probably easier than if silicone was used because it didn’t seem to ball up and roll when scraped like silicone does.

[@jaycity09]

Welcome to the club. Mine dropped a perfume bottle.

[@jackp2323]

I CAREFULLY used a dewalt oscillating saw in the gap. Like a knife through warm butter.

[@brianreilly6523]

Ditto. After the bowl was free I used a Rockwell oscillating tool with a flexible scraper tool bit to remove remaining adhesive and caulk.

[@mic4725]

Both good ideas. Careful is the key so as not to chip the edge of the countertop. Thanks for sharing the info to help others!

[@yinquin9110]

What blade for the oscillator did you use?

[@kirbycraft1302]

​@@brianreilly6523 what blade did you use, or did you use a grinder wheel?

[@kirbycraft1302]

​@@yinquin9110try whatever you have. Good chance he won't respond after 2 years. I don't have the same account I had 3 years ago. Wish I did, just because of things like this, but yea.

[@brendankeough7552]

Skip to 8 minute mark

[@raydolinger1980]

I like how the wife is pointing out excess glue while trying to seal the sink in... Typical, Im shocked you didnt yell " No Sh!t sherlock "... :) Unreal

[@aarontracy5160]

My ex loved to chirp in the middle of projects. I finally just handed her the tools and walked away from multiple projects. I wasn't physically or verbally abusive. Just didn't appreciate the feedback or verbal abuse while working. Reality is, there's a learning curve when doing projects. Verbally aggressive spectators are not helpful.

[@zachariasbrink9540]

man this guy is more talk then anything

[@zrakestephens9872]

Telling how is not showing. I didnt even see you take it off. Fraud

[@HeyZeus667]

Just use the 2x4 and all thread set up that you will need to install it to support it while you are taking the old one out, u don't need a second person. You will need to remove the plumbing anyhow, and u should do this before you start separating the sink.

[@mic4725]

The 2x4 and all thread is a good option for single person removal and reinstallation with slow set adhesives. But the nice thing about the new fast set adhesives is they are set in 15 seconds. So the setup really couldn’t be used for reinstallation. Good option for removal though. Thanks for the info!