Adding A Dual Flush Kit & A Diaper Sprayer To An Old Toilet

Our toilet is no longer the mild-mannered everyday toilet that you’d assume it was. Thanks to being born on the planet Krypton some simple DIY projects that we tackled last weekend, our former Clark Kent of a throne now boasts two new super powers. Can’t you just picture the comic book?

Here’s a rundown of the two blissfully “tool free” (more on that later) projects that we took on. The first was to convert our toilet into a dual-flush tank using a simple $20 converter kit (search HydroRight on or check to see if Home Depot has it) that a reader mentioned to us (thanks Allison!). The second was to add a Bum Genius diaper sprayer to make our cloth diaper clean-up a bit easier (that toilet add-on was $45, but we luckily got it as a shower gift). Oh and our toilet truly isn’t any fancy or special model, so both of these john-upgrades are projects that anyone can tackle in about an hour using any ol’ toilet to start with… although we do realize that a diaper sprayer isn’t high on everyone’s “must have” list.

Let’s start with the dual flush conversion kit. If you find yourself thinking “whaaaa?” let me explain. Splitting the flushing power of your toilet is a water conservation trick that allows you to tell your toilet when you need either a little or a lot of water to, um, take care of your business. Since flushing “liquids” doesn’t require as much water, a dual-flush toilet has a setting that uses a lot less of it. Word on the Interweb is that a dual-flushing function allows your toilet to use 30% less water, which can save the average household 2000 gallons of water a year. And the box that came with our dual flush converter states that the average family can save up to $100 a year just by adding one of them to one toilet in any household (which means it pays for itself five times in the first year alone). And just imagine how much you can save installing one on every toilet.

The box also claimed that this installation would be totally tool-free. But sadly my experience quickly required a tool to remove the tightly-screwed old handle (although it can easily be argued that some toilets wouldn’t necessitate one- ours was just super tight). The good news is that it was still a super easy undertaking. And the next step of removing the flapper (the gray thing that you can see a sliver of in the bottom-right) was far less involved (no tools required at all). Oh and turning the water off was optional, but I did decide to do that so I didn’t have to keep sticking my hand into tank water.

With the old pieces removed, the first task was to slide the bottom part of the dual-flush tower into place where my old flapper had been.

Then I wiggled a tight, black rubber band over the fill tube to keep the dual-flush piece in place and firmly pressed against the opening. There’s also a zip-tie at the back of the piece that I pulled tight to help keep things in place. I had accidentally cut the tie off at first, thinking it was part of the packaging, but thankfully the kit actually supplied a back up! They must have known people would jump the gun like I did. Lesson learned.

Then it was time to set the rest of the tower. It looks like quite a beast, but it clicks into place very easily with a simple drop-and-twist motion. You can see some of the technology in this shot – the adjustable blue slider is what helps to regulate how much water should be used in the quick flush function, and the green switch does the same for the full flush.

My next task was to put in the new button where the old handle had been. I was able to securely hand-tighten this (again, no tools required). Oh and hand-tightening is always a good approach because over-tightening things can potentially crack the porcelain of your tank or bowl. Not good.

Here you can see what the button looks like. It’s split for what we’ve been calling  a “single flush” (for liquids) and “double flush” (for, as the packaging describes, “when you need more power”).

From there you just pop the button device (the white box at the other end of the blue cord) onto the back of the button. And there’s no electricity or battery involved, despite the fact that it all started to look somewhat bomb-like at this point.

It took me about 20 minutes to get this far, but my eagerness to start flushin’ was damped by the fact that the buttons didn’t work at all at first. But through a few minutes of trial and error (which is pretty much how we do everything around here at Casa Petersik) I realized that the level of my blue slider was very important. If it was too close or too far from the water level, my button pushing wasn’t strong enough to lift the tower’s built in flapper. Fast-forward about ten minutes and this John was happy with his john. Both buttons worked every single time once we found that magical placement of the blue slider.

To demonstrate exactly what this dual-flushing function means when it comes to saving water, check out the difference between how little water is used at the single flush setting, and how much more goes out on the full flush setting. There was definitely an obvious difference in the water level, and you could even hear the toilet working a lot quicker for the single flushing action. Score.

As for our toilet’s second super power, the installation of the diaper sprayer also would’ve been completely tool-free had I not needed a wrench to unscrew my previous work. Other than that, the task was so simple that it barely requires step by step photography. The “Mini Shower” simply installs on the bottom of your tank right between your water line and the tank itself. Then a clear, plastic tube (which you can cut to a desired length) attaches with a firm push into the device on one end, and the sprayer on the other.

Here it is installed – you can see it even comes with a handle to adjust the water pressure. Very handy indeed.

If you’re still wondering what the heck a diaper sprayer is (as I admittedly was at first) it’s supposed to be a huge help for cleaning cloth diapers. In fact, many of you even recommended it to us on this post. Without getting too descriptive, it lets you spray “stuff” off of the diapers and into the toilet so it doesn’t go into the laundry (which is then done at a certain temperature to completely sanitize the diapers for their next use). Here’s a demonstration photo (and yes, I did accidentally spray the ceiling while attempting to take this picture).

The kit even comes with a little sprayer holster that can be installed onto a wall, but we opted to use the more subtle hook that hangs on the side of the tank since it feels less permanent (hopefully we won’t be diapering for the next few decades). You can also see that we chose to run the tube behind our tank to make the whole thing less of an eyesore, and this way we can keep the sprayer on the right side of the toilet (which is virtually invisible from almost every angle of our bathroom- plus it’ll also come in handy on that side for two right-handers like us).

So here’s our pimped out potty one last time in all of its super-charged glory.  We love that the upgrades were fast (60 minutes max), easy (almost 100% tool-free) and cheap ($20 converter + gifted $45 sprayer). And since the changes are fairly inconspicuous, our little loo can still keep its secret identity mostly under wraps. In fact, our half bathroom will be getting the same dual-flushing treatment asap because we’re so in love with the eco friendly (and wallet friendly) benefits of such a simple $20 upgrade. Especially when you consider that people pay big bucks for dual flushing toilets and this kit allows you to keep the toilet that you have out of a landfill, but upgrade it with the same cost and water saving technology.

I don’t know if it’s the man in me, but the idea of an upgraded throne is actually quite appealing. It’s the whole “my toy is better than your toy” frame of mind. And since I’ll never win the award for the biggest flatscreen TV or the biggest biceps, at least I can brag that my toilet is smarter than my friends’ toilets. Have any of you tackled either of these john-centric projects (or others like ’em)? We’d also love to hear if you have other tips for conserving water, saving money with an easy upgrade, or heck, cleaning cloth diapers for that matter. Share and share alike.


  1. says

    I love that you are going to use the diaper sprayer with the toilet. My friend recently told me that they have hosed their diapers in the sink and it grossed me out.

  2. Debbie says

    AMAZING!!! I want a dual flusher now too! This is weird to post here, but I think adults could also use the bum sprayer sort of the way they’d use a bidet right? I’m just sayin’… ;)

  3. Meghan says

    Congrats on the baby girl! Do you know if you can use the dual flush conversion kit on an already low-flow toilet?

    • says

      Hey Meghan,

      Hmm, we have no idea. Perhaps it’s something you can ask the manufacturer? Maybe you can find an email or phone number for the one we linked to on Amazon (which is the actual one we purchased). Hope it helps!


  4. Jessica says

    OMG, we just installed our BG diaper sprayer the other night in our spare bathroom (the bathroom that will become our son’s bathroom when he gets here in July). Ever since, my husband has exclusively used that bathroom, and he uses the diaper sprayer like a bidet. I have never, ever seen a man so excited about a bidet, but I’m very happy that the sprayer is already proved useful :-)

  5. Begoña says

    My mum remodel the bathrooms some time ago and she bought a toilet with that system already instaled. It’s awesome and a good and simple way to save some water. How many diapers are you changing everyday? How many hours of sleeping?

    • says

      Hey Begona,

      We’re totally knocking on wood when we say this, but Clara is THE BEST baby! We get about nine hours of sleep each night (interrupted of course, with feedings worked in between the three 3-hour spans of time) but we actually have to set an alarm to wake her up for those feedings since she’s such a good sleeper. We keep waiting for our luck to run out but so far she’s just been a champ! And we even get to fit in a morning shower since I watch her while John takes one and then we switch. In the diaper department, let’s just say she’s very prolific… we easily go through 7-10 diapers a day (so we can’t wait to switch over to cloth) but it means she’s healthy so we wouldn’t have it any other way! And because my hubby is the best guy ever, he actually changes them all since he reasons that it’s only fair because I’m in charge of all the feedings. We’re so happy to be adjusting so well to life with our little miracle!


  6. says

    Great post! I am totally going to install a dual flusher in our bathroom! And since we just bought a Bumgenius sprayer as well but haven’t installed it yet, it’s nice to see that it doesn’t ruin the bathroom with lots of cords, etc. Way to go green!

    Did you guys order the dual flusher from Amazon (as per your link) or have you seen them at Home Depot, Lowe’s, etc.?

  7. says

    We actually just bought a dual flush toilet from Home Depot but unfortunately had to return it due to 2 hairline cracks in the bottom which caused a leak… (the first one we brought home was shattered) it was only $160 which wasnt too bad considering the other toilets we bought were $80. We opted for the toilet with what looks like a “trough” it uses only 1.2 gallon per flush and was rated 10 out of 10 flushing stars! Still a little sad about the dual flush toilet though!

  8. jbhat says

    Honestly, I didn’t think anything could top the post about your new baby. But this one may have done it. Nothing like a toilet upgrade or two to steal poor little Clara’s spotlight. : )


  9. Mary says

    Like many others, I never knew the dual flusher existed. For $20 bucks I don’t think we can go wrong. It’s ironic because my 6th grade daughter recently had a science experiment for school where she had to keep track of how many times we flushed in a 24 hour period. She might get some bonus points if she brings this gadget to the teacher’s attention.

  10. Jessica says

    Neat! Didn’t know they made such a thing. Score one for cloth diapers. Change the art from “Grand Central Street” to “Grand Diaper Station!”

  11. Christina says

    My super easy and eco-friendly DIY toilet upgrade was to just fill two water bottles with water and stones (to weight them down) and plunk them in the tank. I found the tank contained way more water than I ever needed, but by just taking up some extra space in the tank limited the amount of water without having to purchase water saver kit or toilet. Plus this can be done when you’re just renting and not allowed to do anything more permanent.

  12. says

    Wow… who knew a toilet conversion could be so exciting! Seriously… I love the dual flush upgrade. I have been seeing these in public restrooms around town. I had no idea it would be so simple.

    We have well water… so we don’t “pay” for water, but we do have to treat it heavily and run it through our septic system. So even if you don’t get a regular water/sewer bill in the mail… there is still a cost of maintenance etc – so this could save us a lot of money in the long run. I’l be passing this tip on to my husband… I’m sure he can’t wait to install FOUR of them in our house :)

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