How to Refill a Kitchen Sink Soap Dispenser Less Often
The little pump by the faucet runs dry every few weeks, and refilling it foams over or means crawling under the sink. How people stopped doing it.
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Somebody in r/lifehacks asked for a trick for filling the soap dispenser on the side of their sink. The soap always bubbles up and makes a mess. The first replies are blunt: pull the top off, unscrew the bottle underneath, be more flexible.
They're old enough to be tired of crawling under there a few times a year, and their kids have moved away. By the end of the thread they'd picked the one reply that wasn't a funnel or a straw, and said so. A tube, which sounded to them like a pretty good idea.
If your built-in dispenser runs dry every couple of weeks and every refill is a chore or a foam-over, there are two fixes. The first one costs nothing, so start there.
Does the top come off?
On a lot of dispensers the pump pulls straight up and off, and you pour into the hole in the counter. One commenter had climbed under the sink and unscrewed the bottle blind every time. Then their husband watched the whole performance, lifted the pump off and showed them where to pour.
So before you buy anything, lift the pump straight up and pour into the top. If it comes away in your hand, the crawling is over.
The foam is a separate problem, and it's air rather than soap. Pour fast and the air in the bottle has nowhere to go but up through what you're pouring. Pour slowly and near the edge so the air can get out. Or stick a chopstick in the hole and move it about as you pour, which breaks the bubbles as they form. A straw does the same job.
What top-filling doesn't change is how often you do it. The bottle hanging under the counter holds about eight ounces on a standard pump.
The tube to a jug under the sink
Back in the thread where this started, one reply won by a distance. Someone had run a tube from the pump to a big bottle of soap in the back corner of the cabinet, and never refills the little bottle. When the big one's empty, they swap it.
The same idea turns up in r/Frugal, in a thread about small purchases that made life better.
I put the gallon of soap under the sink, connect it, and only have to change it out every few months.
u/PlainOrganization, in r/Frugal
Before the tube, they were filling the little bottle every few weeks.
In r/kitchenremodel, in a thread asking whether anyone really uses these dispensers, several of the people who love theirs have fitted a tube. One says to get the long tube so you can pump from the big refill jug. Without it they wouldn't use the dispenser at all. The reply underneath: "I hated mine until I realized this was an option."
Another had a rubber line rigged straight into a huge Costco jug of dish soap, and calls it easy now, with no waste.
What you buy is a soap dispenser extension tube kit: a few feet of soft tube, a plug or two for the neck of the jug and a small one-way valve in the line.
The valve is there, one tube owner says, to make getting soap up a long tube easier. It stops the soap draining back down to the jug between uses, so the first press delivers soap instead of air. A homesteading blogger who fitted a kit says the same. For the tube owner, a refill takes about thirty seconds: pull the tube out of the empty jug and dip it in the new one.
A clear counter is the other thing owners say for these dispensers: no soap bottle by the tap. The tube keeps it that way, with the gallon out of sight in the cabinet.
Will it fit your pump?
- The hose goes onto the pump's own tube. Look under the counter. The pump has a rigid tube that reaches down into the little bottle, and the kit's hose pushes onto it. The oldest write-up of this trick, a 2002 reader tip in Fine Homebuilding, extends the pump's rigid tube with a length of clear flexible hose.
- The hose has to be snug. The reply that won the first thread adds a caution: tube size varies by dispenser, and a loose tube won't work. The Fine Homebuilding tip found quarter-inch or three-eighths-inch inside-diameter hose fits snugly with no clamps. A reader under it says the wrong size won't pull enough vacuum to lift the soap. A kit's listing says which pump tubes it fits, so measure yours before you order.
- Keep it short and the jug close. The same tip says to make the hose as short as possible. The reader who got it working had to shorten the distance from jug to pump. The commenter whose husband lifted the pump off tried a tube with a giant pump jug of Dawn and didn't get enough suction to bring the soap up. If yours struggles the same way, stand the jug as high in the cabinet as it'll go.
- The jug needs to breathe. Kits ship with a plug or cap for the jug's neck; the homesteading blogger's came with two sizes. The Fine Homebuilding tip leaves the lid off altogether so a vacuum doesn't form in the jug as the pump draws the soap up and out.
- Tube-only kit, or a whole new pump. Two different things are sold under the same words. A tube-only kit fits the pump you have. The kit the homesteading blog describes came with a new pump and took about fifteen minutes to fit. If your pump's broken, that second kind is the one you want.
Who should skip it?
If your pump lifts off and a fill lasts you months, the tube buys you nothing. One owner uses theirs every single time they hand-wash, and a fill still lasts months; they'd never need this.
One owner who'd given up on theirs couldn't see the soap level when refilling. Then the pump broke, and the replacement was silly expensive. A tube fixes the first complaint but does nothing for the second. A countertop installer talks customers out of cutting the hole at all, because most of the pumps are plastic and plastic breaks. The tube doesn't change that either.
Pull up on the pump tonight. Comes off in your hand? Pour slowly, near the edge, with a chopstick in the hole, and the mess is fixed for nothing. Still filling it every other week, or it's glued in place? Order the tube kit and stand the jug as high in the cabinet as it'll go, with the lid off or the kit's plug in its neck.
