Under the Sink Soap Dispenser Hack

This is by far the easiest way to refill your under the sink soap dispenser. Never refill that annoyingly small under sink soap dispenser again with this easy hack that uses a large, bulk size bottle of soap and a tube from the hardware store. This easy hack will save you SO much time because you’ll never need to crawl under the kitchen sink again when refilling the soap dispenser!

Does anyone else dread refilling their soap dispenser under the sink because it is SO ANNOYING? I spill half of the soap, crawl under my messy cabinet, only to struggle with the correct way to tighten back it back on because “righty-tighty, lefty-loosy” doesn’t actually apply when you’re upside down? And then, it seems to last for only a week before that tiny bottle is already empty. I certainly don’t have time for that nonsense.

Small under the cabinet soap dispenser replacement bottle

This is one of those projects I’ve been meaning to do for awhile, but now that it’s done, I feel uber accomplished. It was super easy, and I know I’ve saved myself tons of time that I can now spend on useless, time-wasting activities that I actually enjoy. Best of all, to make your kitchen soap last forever (or at least exponentially longer than before), you only need one supply from the hardware store.

Supplies to Hack your Under Sink Soap Dispenser

You only need one thing (besides a bulk bottle of dish soap):

Plastic tubing used to replace under the sink soap dispenser bottle

The first step is to visit the plumbing section of your local home improvement store. There will be an aisle with tons of different sizes of plastic tubing. I brought the top of my pump with me to the store so I could be sure to find a tube that fit snuggly. You can find a tube that goes over the pump tube, or one that fits inside the pump tube. Either way will work just fine, as long as the fit is tight. The one that fit my pump had an outside diameter of 1/4″ and it fit inside the plastic tube that connected to my pump.

Here’s the exact size of tube I used:

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Tube for attaching large bottle of soap to under the sink dispenser

Kitchen with large bottle of dish soap under the cabinet with tube up to soap dispenser

After that, it’s as easy as threading the tube up through the hole in your kitchen sink (YES, this will be last time you need to crawl under the sink for your stupid soap dispenser!). Then, attach the pump from the top of the sink, and cut the tube under the sink so it sits at the bottom of your (much larger) bottle of soap.

It took about 10-12 pumps for my tube to fill with enough soap to come out of the dispenser. I actually thought the project was a bust, but then I kept pumping and it worked! Now, that the suction is created, I only need to pump once to get the soap out.

Kitchen with large bottle of dish soap under the cabinet with tube up to soap dispenser

So easy, and SO worth it.

Jenny at Refresh Living (dev.refreshliving.com)

Post by Jenny Leads

Jenny is the voice behind Refresh Living. She has a passion for helping people to create a home they love without spending a lot of money.

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3 Comments

  1. Have you had trouble with air getting in the tube (or some other cause that we don’t understand) so that soap will not pump from the tube in your dish soap bottle?

    We’ve had this issue twice, shortened the tube and now have the problem again. Also, we have a clamp on the gasket to prevent the tube coming out or air going in, but still have the problem.

    Any solutions?
    Thank you,
    Joan

    1. Hi Joan. I haven’t has the issue you’ve encountered. I did need to rapidly pump about 10 times for the soap to initially make it up the tube, but then it’s been working fine since. The only thing that might be different is that I found a tube to fit on the inside (rather than the outside) of my soap dispenser. I don’t know if yours is the same? I honestly wouldn’t think that it would matter as long as it’s a tight fit, but maybe it does?

  2. “we have a clamp … to prevent … air going in…”

    The bottle must be vented to atmosphere so that air can fill the bottle as soap is pumped out. A check valve on the tube close to the bottle will help reduce the pumping required.