Deep Kitchen Sink

by Greg Zimmerman

Replace the shallow kitchen sink with this restaurant quality deep sink and high rise faucet.  The Krowne HS-1419 includes a heavy duty metal faucet and a drain basket. The installation requires cutting the existing sink opening about 1/2″ deeper, drilling 4 holes for the mounting studs, and drilling new 1″ holes for the faucet.  The water lines will reach without modification, but the drain needs to be modified.  I used Little House Custom’s kitchen Hepvo valve kit which removes the P-trap to keep useable storage in the under-sink cabinet. 

Here’s the tiny Casita sink
Old sink out and new one ready to test fitting

Start by loosening the 6 screws under the kitchen sink, remove the P-trap, water lines and faucet. Pull the sink out and lay the new sink in place.  Mark across the back where the fiberglass needs to be cut. I use a cut out tool and roto-zip bits.

The pencil line is how much material to remove. I wear eye/hearing protection and a respirator.

Once the sink will sit down so the studs lay on the counter, mark them and drill 1/4″ holes.  The sink should now lay flat.  Pencil in the circles for the faucet and drill the 1″ holes.

Now for the fun part, it’s a very tight fit to crawl under the sink through the cabinet door opening.  Reaching up from the underneath install the 4 wing nuts to hold down the sink.  Next put the faucet washers and nuts on, attach the plumbing lines, and install the kitchen sink Hepvo valve.  That requires cutting the drain pipe to the appropriate height and lining everything up before glueing the PVC fitting and screwing the rest together.

I’ve now done 6 of these sinks and here’s an update:  Instead of 1″ holes for the faucet, I drill 2″ holes and pre-install the faucet to the sink before dropping the whole unit in.  It’s much easier and there’s less chance of a leak.  I also silicone the rubber gasket to the drain on the sink to help everything stay sealed.  Finally, where the PVC drain pipe goes through the floor, run a bead of silicone around that so the weight of the Hepvo valve doesn’t push the plumbing down through the floor.


Paula Rider August 23, 2019 - 2:47 pm

You’re amazing. Ty we want to come see ya

Alan Day January 26, 2020 - 11:16 pm

Hi, Greg! I’d like to try this on a 2017 Independence Deluxe. Have you tried this, or do you know anybody who has, so I can get advice, directions, and maybe pictures? Thanks, love your work!!!

Greg Zimmerman January 27, 2020 - 11:21 am

Nope I have not. I’ve looked at a few Independence and Liberty’s with the “drivers side” kitchen and I don’t think it will work. The spacing of the faucet doesn’t match where the Krowne sink’s location is. Also if those layouts have a furnace, there’s no room for it.

Norton Dianne February 11, 2020 - 11:45 pm

Where did you get the faucet handles. The sink referenced and link comes with regular turn handles.

Greg Zimmerman February 12, 2020 - 6:33 am

The faucet and handles come with the Krowne sink.

Doug Norton March 3, 2020 - 8:33 am

In photo #5 showing the reattachment of the water lines, what is the plastic or silicone substance shown on the back bottom underside of the sink? I suspect you did something to soundproof the sink. My Krowne sink had nothing on the bottom. Thanks.

Greg Zimmerman March 3, 2020 - 9:08 am

There’s nothing on the sink bottom on mine either. I think the flash is reflecting scuffs in the stainless steel to make it look like a coating.

Doug Norton March 3, 2020 - 12:48 pm

I see that now. Thanks for the quick response. I am putting mine in today.

Doug Norton March 3, 2020 - 5:31 pm

Water supply line, any need to replace any washers at attachment point?

Greg Zimmerman March 4, 2020 - 7:53 am

No need unless they leak after the installation. Get them as tight as you can by hand. Removing the drawer will give you better access.

Doug Norton March 5, 2020 - 8:22 pm

I could not get into the cabinet. My wife wanted it done so badly that she crawled in, attached the lines, and tightened them with a basin wrench. Perfect job and no leaks.
I did have an issue with the basin nut not sealing on the Krowne and had to buy a thicker rubber washer. All done. Thanks so much for your instructions and support.

Greg Zimmerman March 6, 2020 - 12:01 pm

Glad it worked out for you. I also figured I needed thicker washers with some silicone on there to seal the drain to the basin. Great work, it’s a tight fit and not an easy job.

Edward Elrod March 26, 2020 - 12:41 am

That is awesome! So much so, I ordered the sink and hepvo valve today. I was wondering if you calk under the edges of the sink. If so, what type of calk? Btw, hope your family is safe and healthy. It appears we are about to have similar problems stateside.

Best regards,

Greg Zimmerman March 26, 2020 - 8:24 am

You can use “plumbers putty” under the sink flange. It’s like play-doh that you roll out and stick around the edges. Once the sink is bolted in, it’ll smoosh out and you can cut it with a plastic knife. Or wait until after the install and use white silicone bath caulk around the edge.


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