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I use shampoo from a large bottle with a pump. The pump can't get the last bit out of the bottle.

I cut apart the pumps from two shampoo bottles and epoxied the caps together to make an adapter. I'm going to use it to attach the old bottle to the new bottle and drain the remainder out.

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[-] ScrollerBall@lemmy.world 19 points 6 days ago

Funnel

I 3D printed this funnel for that same purpose. I have been patiently waiting for an opportunity to use it.

[-] NABDad@lemmy.world 6 points 6 days ago

A few years ago I designed an adapter, but then my 3D printer died and I never bothered.

[-] SaveTheTuaHawk@lemmy.ca 1 points 5 days ago

that's not dull enough. Take it outside, tech boy.

[-] ladicius@lemmy.world 19 points 6 days ago

I simply hang those nearly empty bottles upside down and let the remains drip into the new bottle.

Compared with that your solution is high tech.

I put a bit of water in to and shake it so it comes out easy.

[-] NABDad@lemmy.world 7 points 6 days ago

That's what I've been doing for the previous 45 years or so.

What did you do before that?

[-] NABDad@lemmy.world 11 points 6 days ago

Solid way of dealing with that.

[-] Akasazh@lemmy.world 4 points 6 days ago

You must aquaint her with your interlocutor, I'm shure they would get along :)

[-] HeyThisIsntTheYMCA@lemmy.world 1 points 6 days ago

I bet when your toothpaste is low you get out the scissors and cut it open so you can scrape out every last mint.

[-] HeyThisIsntTheYMCA@lemmy.world 6 points 6 days ago

Might I offer a design suggestion? Feel free to ignore

So does it have a hole near the bottom of that straw? If not, I'm thinking drill one in. Like, in the side of the straw. Am I making sense?. It'll pour faster, the top hole (vertical) just became your air hole. The bottom hole (horizontal) gets all the shampoo.

[-] NABDad@lemmy.world 4 points 5 days ago

In use the tube points down into the new bottle.

It does not have a hole, but the tube is pretty wide.

I had thought about providing a way for air to pass into the upper bottle, but I decided it probably isn't necessary.

My expectation is that the shampoo is thick enough to cling to the inside of the tube as it drains down, and thin enough to leave space for air to pass up through the center of the tube.

It's getting it's first use today. I'll leave the old bottle draining into the new one until tomorrow morning, so even if it has to do the glug-glug thing, it should still successfully drain completely.

[-] HeyThisIsntTheYMCA@lemmy.world 2 points 5 days ago

ohhhh i thought there was going to be a pool of shampoo around that straw

[-] HerbalGamer@sh.itjust.works 3 points 5 days ago

Just cut it off diagonally, that way the hole can't get blocked by the sides of the bottle.

[-] Bluefruit@lemmy.world 7 points 6 days ago

Now this is dull lol. This is def something I'd do too if it bothered me enough.

[-] NABDad@lemmy.world 6 points 6 days ago

It took a few decades of thinking about it before I finally acted on it.

[-] RampantParanoia2365@lemmy.world 3 points 5 days ago

How come when I shake the damn bottle, the last bits don't goddamn settle in the middle, so the pump will work, but then I open it, and there's clearly more than enough to do that? Fucking asshole conditioner.

[-] NABDad@lemmy.world 2 points 5 days ago

You need to get out your pocket knife and epoxy and free yourself.

It's like a weight has been lifted off me.

The knife is for the pump edits. I'm not recommending self-harm.

[-] RampantParanoia2365@lemmy.world 2 points 4 days ago

What do you do? i have both those things, a box knife, and other adhesives.

[-] NABDad@lemmy.world 1 points 4 days ago

First I cut off the narrow bottom end of the cylinder to remove the tube that goes inside the bottle, then I cut off the top tube that runs to the spout of the pump. That let me push the plunger out through the bottom.

I did the same thing with the other pump, except I had to get the entire tube out of that one so that the only part that was left was the fitting that screwed onto the bottle. To do that, I ended up cutting it and tearing it out with pliers. It would have been easier to use a drill to drill out the center, but then I would have had to leave the room where I was sitting.

Once that's done, all you need to do is join them together.

[-] SpaceNoodle@lemmy.world 5 points 6 days ago

This is creative and ingenius, not dull.

[-] NABDad@lemmy.world 10 points 6 days ago

I was worried that this would be too exciting to qualify, but then I told my wife about it, and used her reaction as a guide.

[-] SpaceNoodle@lemmy.world 5 points 6 days ago

I suppose your wife is more exciting than us dullards.

[-] Rhynoplaz@lemmy.world 4 points 6 days ago

Hope you don't mind if I rip off your design!

[-] azureskypirate@lemmy.zip 3 points 6 days ago

I had a cousin that saved quart oil bottles for years, and then spent a whole day draining 50 or so to get a full quart. A device like this would have saved him so much labor

[-] mittyta@lemmy.world 2 points 6 days ago

Iconic dull men post

this post was submitted on 15 Sep 2026
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