Toilet Lid Sink

Product Description

Create a Sink and Toilet Combo with Sink Twice

WATCH INSTALLATION VIDEO: https://youtu.be/hY3Ib_Hq3qA .

Wash your hands with the clean water, leaving the soapy water to clean your toilet when flushed! Sink Twice is a major water saver, leak detector and a space saver.

Our patent pending "fill cycle diversion" faucet is a significant leap ahead of our competition in water efficiency. The basin has plenty of room on the flat soap holder for foam soap containers and the drain is specifically designed to prevent splashes.

This sink twice model measures 17" and is recommended for small toilets measuring 14" - 16.75" (measured with the lid off). If your tank is larger than 17", please carefully read below.

Sink Twice is designed to function best with Universal valves (i.e. Fluidmaster, Korky and common ball and valve combinations). FluidMaster 400A is best if you need a valve. Sink Twice is compatible with gravity fed (not jet fed or tankless) toilets. For new projects, the best for all-around performance and compatibility are the Gerber 1.28 GPF or Delta 1.28 GPF toilets. If you have a 1.6 GPF toilet, please buy our (BRAND NEW) "Sink Again" model instead which best fits toilet tanks 17" -19.5" (measured with the lid off). For large rectangular tanks, you have two options - for rectangular tanks measuring 18" - 20" (measured with the lid off), please buy the "Sink Bigger" model. For tanks measuring 19.5" - 21" (measured with lid off) please buy this model WITH our expander kit sold separately.

We pride ourselves in quality, efficiency, and customer service. We are a 100% family-owned Colorado company. Please contact seller with any questions.

Features

• Fits most standard toilets measuring 15.25 in to 16.75 in
• Touchless faucet activates with hand motion to save water
• Diverts used water to flush the toilet, saving up to 25,000 gallons per year
• Made of durable plastic; easy to install in under 5 minutes

Top Reviews

I'm happy with this sink.
by Rose (4 out of 5 stars)
September 6, 2016

I tried it on three different toilets and it doesn't fit any of them. I'm sorry I bought it. I need it so we'll do something to make it work.

Update 9/12

This company has the best customer service! My toilets are older so this product doesn't fit as well as it fits new toilet. I was told to grind down the lip on the sides and now it fits great.

This sink is built well and it looks great. I like that it has a place for soap. These are the reasons I didn't return it. Now I'm really glad I didn't return it.
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Exceeded my expectations
by Nicholas Browdues (5 out of 5 stars)
June 5, 2018

This product was the cheapest I found of its kind, so I figured why not. I'm glad I took a chance and it performs well. Simple instructions and easy to install. Even on my high-efficiency toilet, the high pressure installation worked. There is ample time to wash hands during a flush (see video) and it fits over the toilet well. It has been a great conversation piece in our guest bathroom. This is a great way to save water.
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so good! A detailed diagram of this sink with exact ...
by CrzyShane (5 out of 5 stars)
April 18, 2017

I bought this for a utility room bathroom used mostly by smaller children. We have a huge utility sink but my wife would rather use it for soaking clothes, and the kids need a step stool, etc., etc. I used some water resistant double-sided 3M adhesive to semi-permanently affix it to the top of the toilet (to prevent curious kids from taking it off) and I used some more to affix an automatic soap dispenser to the top. So far, so good! A detailed diagram of this sink with exact measurements above and below would be great and I'm surprised the manufacturer doesn't provide them. The best I can do is say that it perfectly covers the Delta Turner toilet tank which is pretty small as far as toilet tanks go. Unless you have a newer, nicer toilet, I bet you'll find this too small or need their cosmetic extension kit (or need to hack together your own). And yes, the cost on this item is probably less than $20 including the Amazon warehouse fees. They are making a killing and I just wish they'd package and present this product in a way that makes you feel good about lining their pockets with cash. Yes, it's a great idea, American-made, etc., but why not include the cosmetic extension kit for larger toilet tanks, include better measurements/marketing materials, make the soap tray something that can better accommodate liquid soap, etc. Just my 2c.
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The concept is brilliant. The sink itself is mediocre
by Claire Walker (3 out of 5 stars)
September 16, 2017

The concept is brilliant. The sink itself is mediocre. The material looks and feels very cheap. You could DIY this for much less money and have a far more beautiful end product.

I was surprised how much water you get with each flush, more than enough for each hand washing. It sits weird on my toilet, and isn't heavy enough to hold itself down in place, so I'll be looking for a solution to that.

I love this idea, and hope they keep improving the product until it's good enough to go mainstream!
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Great for saving water and makes an interesting conversation piece with guests :)
by Mike C (5 out of 5 stars)
July 27, 2018

This is great! It saves water, the kids think it's "fun", and doesn't look horribly out of place. It's worth the price, at least in my opinion, and it's made in the USA. For the people worried about grey water, just use this with a toilet that gets regular use and that won't be a problem. The soapy water wouldn't be much of an issue anyways, except maybe after long enough time you might have a small soap scum line in your tank. Just don't drink out of your toilet tank and you'll be fine!
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too small for an average american toilet tank
by Hollyecho Montgomery (4 out of 5 stars)
August 22, 2016

The ONLY reason for not having 5 stars is that it is not a good fit on the back of the tank. But its still great, its smaller than the tank, So, I had to use duck tape in the back to keep it from sliding.
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we received excellent customer service in the form of adaptors that allowed ...
by beanie and fiona (4 out of 5 stars)
December 10, 2016

Though the Sink Twice was too small for our older toilet, we received excellent customer service in the form of adaptors that allowed us to set the product on top of the tank.
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Ingeneous
by UK2CA2SD (5 out of 5 stars)
April 29, 2017

We built a Man Cave over the garage including a toilet that is too small for a sink. This is perfect (almost) to address that absence.

Quite simply it diverts water that is refilling the toilet tank into a little sink that replaces the tank lid. Not quite perfect as the water is cold but I guess that I could divert hot water if I was so inclined.

Kind of spendy for molded plastic but it's certainly a conversation piece.
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Not my first choice, but,
by W. ANDERSON (3 out of 5 stars)
August 24, 2018

I really don't like this cheap plastic sink. It makes my skin crawl using it, but my wife loves it and is so happy we got it. I see it as an insult to plumbers everywhere while it has allowed us to have a sink in a closet size bathroom bathroom that is barely big enough for the toilet. It annoys me to have to wait for the water to start once the float drops in the tank and then you get a tiny stream of cold water than ends once the toilet tank is filled. Your mission, sould you choose to accept it, is to wash your hands under the tiny faucet before it shuts off. It is also disconcerting to see the soapy water from your hands going into the toilet bowl. I know this sounds silly, but it bothers me because anything that goes down the sink drain may plug the wash holes in the toilet rim. Trust me, you don't want to plug the little holes under the toilet rim, just thing of how much fun it would be trying to unplug them, I would replace the toilet if I couldn't get very lucky with a piece of wire. This is why the sink has a strainer to try and prevent that disaster from happening, at least they thought of that. But I would still not recommend brushing your teeth or much of anything else other than a simple hand wash in this toy sink. Anything you spit or pour in this toy sink may clog the strainer which is far better than if it clogs the rim wash holes. Can you even imagine tooth paste coming out the rim wash holes? Yeech! While this sink can solve the missing sink problem in a bathroom too small to install one it, it is a very limited aplication minture plastic sink. If you have room, get a real sink installed, but if you don't, this toy can be a life saver, or at least a bathroom saver.
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I love it
by Cfsh (5 out of 5 stars)
September 14, 2018

This was exactly what I wanted for my small bathroom that couldn't accommodate a sink. I was able to install it myself without a problem. Some have claimed it to be cheap plastic, but it is sturdy for its purpose. I would like there to be a way to adhere it to the tank so it would be more sturdy,however . I tried using Velcro tabs on either side to stabilize it. I don't think it would be an issue if I wouldn't have needed the adapter.

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