Double Sink to Single Kitchen Sink Installation

When I first moved in, I was really excited about my double sink.  I had never had one before and thought I would love it… Boy was I wrong.  To say I hated my double sink was an absolute understatement.  I have a few pans that are rather large and need to be hand washed.  After soaking the floor because my pan wouldn’t fit completely I knew that the sink needed to go.

Granite seems to be all the rage in kitchens these days (although Quartz is probably a better solution because there’s no need to reseal it over the years).  After watching a home improvement show I saw that they had put in a granite sink and it looked awesome!  I put that in Todoist and marked it as an upgrade after I purchased my house.

Not only was my double stainless steel sink small it was also… sticky?  Not like ew gross it’s covered in old jam sticky, but dirt just seemed to stick to it and no method of Bar Keepers Friend or Stainless Steel Magic seemed to help so I set out looking for a new sink.

I really only wanted 3 things in a sink… stone, single, and no counter modification.  I looked for some time and finally found one at one of the big box home improvement stores.  It was expensive (slightly more than the one my mom had purchased and hers was a double sink), but I took the plunge.  I had been concerned despite what I read online that it might be too heavy for my cabinets, but these sinks are surprisingly lite (right around 30 pounds).

Now I used to work in a Hardware store and we’d always joke with our customers that were doing plumbing projects that they are a minimum of 2 trips to the store per job.  The guys and I would always try to get away with 1 trip and even though we knew what we needed we ALWAYS ended up making at least 2 trips.  My last plumbing job I got cocky, “It’s only a faucet installation it’ll be easy!”.  Who forgot to buy new Stainless steel water supply lines? That would be me!  I was determined this time to make sure I bought them when I found the faucet I liked.  And I did! BUT!!!  I didn’t read what kind I needed and bout the wrong one and ended up making another trip.  But we’ve skipped ahead too far let’s back track a bit to the actual installation.

I thought about taking step by step photos but, there are so many great videos online just to a search, I’ll give you the basics.

Remove Old Sink:

  1. Turn off Water.  If you have purchased everything you need, the plumbing gods will smite you and your shut off valves will be stuck in the on position and will need to be replaced
  2. If you have a garbage disposal it’s a good idea to turn off the electricity or unplug it if you can
  3. Release pressure in lines by turning the faucet on.  No water should come out
  4. Get a pot and stick it under the trap and begin disconnecting
  5. Disconnect the drain from the sink flange
  6. Disconnect the Garbage disposal if you have one
  7. Disconnect the water lines (in my case i disconnected them from shut off valves and left them attached to the faucet since i was replacing the faucet as well)
  8. Disengage sink clips
  9. Run a utility knife along the sink.  There should be a bead of caulk that attaches your sink to the counter top
  10. Remove Sink

In my case, this is where the fun began.  Because I was going from a double sink to a single, I was eliminating a drain.  Not a big deal however the drain discharge was in the way of where my garbage disposal was now located.  A quick cut with a sawzall and a 90 degree elbow and we were back in business.

Quick tip! When using PVC purple primer, make sure you put down a drop cloth.  It is very difficult to get off if you spill!  I hear toothpaste and a toothbrush works well… haven’t tried it yet.  I’ve tried Clorox wipes, Soft Scrub and Mr. Clean Magic Eraser.  Soft scrub seemed to work but I couldn’t get it into the texture of the flooring yet.  Hopefully the toothbrush will work.

Installing the new sink is pretty simple.  Place a bead of caulk around the opening and repeat the steps to reconnect everything.  When installing the sink flanges it is recommended that you use plumbers putty to seal it.  However, plumbers putty will stain and discolor granite sinks so you should use silicone caulk instead.

Now that the project is complete, I love the new sink.  I was able to wash my pans without spilling water everywhere.  In fact, I was able to get my pans in the sink with my puppy Lewis and there was still room to spare!

In the end, replacing a sink is a rather simple project.  Remember, 2 trip minimum to the store.  Take your time and do it right.  I’ve included before and after pictures of the project.fix1 fix2 fix3

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