Best Toilet Repair Kits Reviewed: Top DIY Flush Valve Rebuild Assembly Options

As much as we all try to buy the perfect toilet up front, having to repair your throne eventually is a fact of life for the modern homeowner. When possible, try to use your warranty coverage to pay for replacement parts and labor costs! However, if you’re out of warranty, you shouldn’t be stuck paying a fortune for a plumber to come by. Most toilet repairs are actually really simple. All you need is a cheap repair kit!

Here are a few of our favorites:

Product	Details
1. Korky 2003BP EasyFix Toilet Flush Valve & Flapper Repair Kit	1. Korky 2003BP EasyFix Toilet Flush Valve & Flapper Repair Kit Best Flapper Valve Kit	Amazing Value - Flapper Valve Only - Easy to Install - Made in USA	Check Price
2. Fluidmaster 400CRP14 Universal Toilet Fill Valve & Flapper Repair Kit	2. Fluidmaster 400CRP14 Universal Toilet Fill Valve & Flapper Repair Kit For Older 3.5 GPF Toilets	Most Popular - Fill Valve + Flapper - Seamless Installation	Check Price
3. Korky 4010PK Universal Complete Toilet Repair	3. Korky 4010PK Universal Complete Toilet Repair	Full Toilet Repair - Fill Valve + Flapper + Flush Valve - Quiet Flushing - Made in USA	Check Price
4. Next by Danco HydroClean Water-Saving Toilet Fill Valve Repair Kit	4. Next by Danco HydroClean Water-Saving Toilet Fill Valve Repair Kit	Built-in Leak Detection - Fill Valve Only - Water Saving Valve	Check Price
5. Plumbcraft 7029000 Toilet Repair Kit	5. Plumbcraft 7029000 Toilet Repair Kit	Complete Repair Kit - Fill Valve + Flapper - Saves up to 40% More Water	Check Price
6. Hibbent Universal Toilet Fill Valve Kit Adjustable Water Line	6. Hibbent Universal Toilet Fill Valve Kit Adjustable Water Line	Universal Fill Valve - Fill Valve Only - Easy to Install	Check Price

Best Toilet Repair Kit Reviews

1.Korky EasyFix

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This kit is an inexpensive way to get your flush valve sealing again. According to Korky’s product page, it includes a Korky flapper, a chain, a plastic flush valve seat, and silicone sealant to bond the new seat over the old one.

It’s a great fix for corroded or pitted flush valve seats. It fits standard 2-inch flush valves, and Korky says it takes less than 15 minutes to install. You don’t have to remove the tank to make the fix!

We also appreciate that the flapper is a flexible synthetic rubber that seals well, and Korky backs the kit with a 5-year warranty.

If your toilet is leaking past the flapper, or keeps trickling after the end of a flush, this is a good solution. Korky lists it as made in the USA. Buyers find it easy to install.

Be aware that this kit is just for the flush valve and flapper, so it won’t fix anything related to the fill valve. It only fits 2-inch flush valves, and many newer toilets use 3-inch valves, so check yours first. If the chain is left too slack or too tight, the flapper may not seat, so adjust it before you call the job done.

You’ll also need to be careful using the silicone. Clean and dry the old seat, apply the sealant as directed, and let it cure before you refill the tank, to make sure you don’t end up with another leak.

2. Fluidmaster 400CR

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The Fluidmaster 400CR is a kit for overhauling your fill valve and flapper all in one go. It pairs Fluidmaster’s popular 400A fill valve with a 2-inch flapper.

If you have problems at both ends of your tank assembly, this is a better kit than the Korky EasyFix. It includes both a flapper and a fill valve, with the parts you need to get the job done tight.

One important catch: Fluidmaster says the 400CR is meant for older toilets that use more than 1.6 gallons per flush, such as 3.5-gallon models made before 1994. Its flapper releases more water than a modern 1.6-gallon or 1.28-gallon toilet is designed for, so pick a kit made for low-flow toilets if yours is newer.

Fluidmaster describes the flapper as chlorine-resistant for harsh water areas. The fill valve has a filter which can get clogged if you have hard water. Fluidmaster also warns that in-tank bleach or chlorine cleaners will void its warranty.

Buyers find it quick to install, with clear instructions. The solid-frame flapper design gives a consistent seal.

Reviews are mixed on durability. Some buyers said theirs held up well, while others said components failed pretty shortly after installation. You also can’t jimmy-rig the flapper to work for a slightly different toilet design.

The downside of the rigid design is that it’ll either work perfectly, or not at all. And finally, like the Korky, it only fits 2-inch flush valves, and some tank shapes just won’t work perfectly.

3. Korky Universal Complete

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Our current favorite toilet repair kit is another Korky model. It goes further than the Fluidmaster by replacing the flush valve too. Korky’s product page says it fits 2-inch flush valve openings on most brands, and it includes a fill valve, flapper, flush valve and tank-to-bowl gasket.

In fact, this kit includes nearly everything you’ll need to overhaul the whole tank mechanism. There are tank bolts, washers, nuts and a gasket to go along with the main components. Korky notes that it won’t fit Kohler one-piece toilets, which need a specialty flapper.

This one’s more complete than the Fluidmaster, since it replaces the flush valve as well. The QuietFILL fill valve is designed to refill quietly, and we especially like that it is height-adjustable, so it can be fitted to most tanks.

It can last for years, as previous buyers have attested, and Korky backs it with a 5-year warranty and lists it as made in the USA. Reviewers also said they were pleased with the quality of the instructions, and Korky has video tutorials online.

On the downside, this model costs more than a flapper-only kit or the Fluidmaster. Most of that cost is justified by the extra parts, but it is still one of the more expensive kits.

It’s not perfect, either. The rubber rings are on the harder side of things, so you’ll have to be careful to fasten the fittings to avoid leaks. Some buyers who were used to softer seals said they ended up with leaks. Take your time, and make sure you check for drips before you finish the job.

4. Next by Danco HydroClean Water-Saving Toilet Fill Valve Repair Kit

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This fill valve kit is marketed with built-in leak detection, which is meant to alert you when the tank is losing water. That can help you catch a silent leak before it shows up on your water bill. Still, do a dye test now and then to be sure.

It also features an adjustable water level, which helps you avoid overfilling the tank.

It is also marketed with a cleaning feature meant to flush sediment from the tank as it refills. You will still need to clean the bowl as usual.

This is a highly recommend repair kit for the novice user since it installs easily. It has been equipped with an easy-turn mounting nut that helps inexperienced homeowners install it. It also makes way for easier adjustments.

The adjustable height lets you set the water to the fill line marked in your tank, which helps your toilet flush as designed.

This inexpensive kit comes with a refill tube as well. Check the package for warranty terms.

5. Plumb Craft 7029000 Toilet Repair Kits

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Spend a bit more money on this complete repair kit with multiple and versatile functions. It includes fill and flush valves, bolts, washers, toilet flapper, gasket and flush lever. It aids you in conserving water: the maker claims savings of up to 40 percent, which depends on how leaky and inefficient your old parts were. There are 7 water flow adjustment caps included in this purchase and all of them are color-coded for easier usage.

The parts are plastic and rubber, so there is no metal to rust.

It also turns a noisy toilet into a quiet one as it replaces the floating ball mechanism. A lot of users did not go through so much trouble installing this one. Even those that did not have prior experience in installing a toilet repair kit found this easy to install.

It’s a little bit more expensive than your average toilet repair kit but since it comes with more parts and functions, it is worth spending a bit more money. It’s not that heavy on the budget as well. And if you are looking for a kit that you can rely on for a lot of uses, this will definitely fit the bill.

There were just a few isolated cases here and there such as the valve not stopping right away. It will take a minute or so before completely stopping, which some users find bothersome.

6. Hibbent Universal Toilet Fill Valve Kit Easy and Rapid Adjustable Water Line

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This inexpensive repair kit is just the thing you need if you are only looking for a tank fill valve replacement. It takes care of most concerns about the fill valve such as slow filling problems, noisy or cracked valves. This is a completely adjustable fill valve. Just push down the ring and find the right height that works for your specific needs. The listing gives a range of about 7.8 to 13 inches.

It is a universal fill valve, so you shouldn’t have issues fitting it in different brands of toilets. It also has an automatic shut off function, so it will conserve water effectively. You also have the option of delaying the fill water function.

Customers have been raving about how easy this repair kit to install is. They said it took them no more than 10 minutes to hook it up to their toilet. It also solved many of their toilet flushing issues such as noise and uncontrollable filling.

If you have a high-efficiency toilet such as those low-flow ones, you can also use this repair kit. It works even with the shorter fill valve because it is completely adjustable.

Reviews are mostly positive, with few complaints about leaks. Users also say it operates quietly.

Perhaps the downside is that there aren’t a lot of reports about how good the customer service is. If you have any questions about its usage, you might not get a lot of support. Also, it is lacking in bells and whistles that many people might look for as it is only a fill valve and no other functions are included.

How to shop for the best toilet repair kit:

Figure out what your problem is

Before you start shopping, it’s a good idea to diagnose your toilet’s problem. Depending on whether you’ve got a “phantom flush”, a continually-running flow, leaks, or a flapper/floater that won’t stop the tank filling over the sides, you’ll need to replace different parts and components.

Start with a simple dye test. The EPA suggests adding a few drops of food coloring to the tank; if color shows up in the bowl after 10 minutes without flushing, the flapper or flush valve is leaking.

To look inside, shut off the water at the supply valve behind the toilet (turn it clockwise), then flush to empty the tank.

Once the water’s off and the tank is empty, you can have a look inside! You should check all the seals and valves for corrosion since corrosion and mineral deposits are usually the culprits for leaks and other issues.

Check the flush valve seat and fittings for pitting or mineral buildup. A light scrub can help, but a badly pitted seat needs a seat repair kit like the Korky EasyFix. Watch your float carefully, and take it through its range of motion with your hand. Tank water is clean supply water, though you should still wash your hands afterward. If the float or fill valve isn’t working properly, replace it with a fill valve kit.

Must Read: Replacing a Toilet Fill Valve

Here are a few common problems, and what to do about them

-your toilet has phantom flushes or runs intermittently

In this case, the culprit is usually a slow leak from the tank into the bowl past a worn flapper or flush valve seat. The water level drops until the fill valve kicks on to top it up, which sounds like a short phantom flush. The EPA notes that old or worn flappers are a common cause of toilet leaks.

If this is your problem, the solution is to replace the flapper, and the flush valve seat if it is pitted. Pretty much any toilet repair kit will come with a flapper, so you should be able to get away with one of the cheaper ones. Match the flapper size (2-inch or 3-inch) to your flush valve, and make sure it seats evenly before you start using the throne again.

-your toilet keeps running non-stop

If your toilet won’t stop running, look at the overflow tube. If water is spilling into it, the fill valve isn’t shutting off or the water level is set too high. Family Handyman recommends setting the water level about 1/2 to 1 inch below the top of the overflow pipe. If water isn’t reaching the overflow, the flapper is the more likely leak.

You can try cleaning out the original valve, to see if that solves the problem. In many cases, clogged or mucked-up valves can be the culprit. If you can simply clean and re-fit them, you’re good as gold without buying any components! Use an old toothbrush and vinegar. That usually does the trick.

If cleaning doesn’t solve the problem, you should buy a kit that comes with a new fill valve and all the accompanying fittings. Fill valve kits are inexpensive. You’ll have to replace all the affected components, then make sure the replacements fit together tightly.

Learn more on How to Fix a Running Toilet

-your toilet has a weak or incomplete flush

If your toilet doesn’t have a good strong flush, check the simple things first. The tank water level may be set too low, or the flapper chain may be too long and letting the flapper drop shut early. Mineral buildup in the rim holes or siphon jet under the rim can also weaken the flush, and a partial clog can too. Folks with hard water may need to clean these areas more often than others.

Choose a kit that has the appropriate components to solve the problem

This next step is fairly obvious, but you should know which parts you need to have in your kit. In addition to the main components like the fill valve and flapper, make sure you keep a tally of all the O-rings, seals, or bolts you need to replace. Many kits come with extra fittings, but they may not necessarily match the hardware already on your toilet. When you’re comparing the big components like the valves, make sure you take a good look at your toilet. Know the size of the flush valve: older toilets mostly use 2-inch valves, while many newer low-flow toilets use 3-inch valves. Some brands also use their own canister or tower-style valves that need brand-specific parts.

Buy American where possible

Here at Homeworthy List, we always like to shop domestic where possible. American-made parts support your fellow workers, and they keep our economy strong.

You’ll often find imported kits and components for lower prices. Quality varies more by brand than by country, so check the warranty and reviews either way.

So, while you might have to pay a couple dollars extra for something made in the USA, we think it’s worth considering. We note the country of origin where the maker lists it.

Skip in-tank chlorine tablets

Drop-in bleach or chlorine tablets can wear out rubber flappers and seals faster, and Fluidmaster says using them voids its warranty. If you replace your flapper, skip the in-tank tablets so the new parts last.

Don’t expect miracles

Lastly, and we can’t stress this enough, toilet repair kits aren’t miracle-workers. They’re designed to address specific issues with a throne or to replace particular components.[1] If your toilet is just plain poorly-designed, they’re not going to do much to help you out.

Let’s break that down. These repair kits are designed to resolve problems with specific parts of a toilet’s flushing mechanism. They can stop things running constantly, or help you replace a leaky seal. They don’t solve problems with the toilet itself. They won’t make it more efficient, beyond stopping runs and drips. They won’t make any miraculous improvements to flushing performance, either.

If your only problem is a leaky flapper or pitted flush valve seat, we would recommend you try the Korky EasyFix thanks to its low cost. For a full tank overhaul on a 2-inch toilet, the Korky complete kit is our pick.

So, if your commode has worked very well in the past, but develops a problem over time, a kit is probably the best approach. If it’s never worked particularly well, you may want to consider replacing it with something better. That’s when it’s time to read our main buying guides!

Final Verdict

In conclusion, the above products are indeed the best toilet repair kits. They have excellent features and amazing functionality which makes them worth the value of your money. They are easy to install and can stop the leaks that waste water. Just match the kit to your toilet’s flush valve size and water use. If you’re still confused as to what toilet you should get, read more on Best Toilet Reviews. If you need a place to keep them then you can hold them in your shower cabinet if you have extra space.

Sources

• 2" Universal Toilet Flush Valve Repair Kit, Korky
• 400CR Fill Valve and 2" Flapper Toilet Repair Kit, Fluidmaster
• Fix a Leak Week, U.S. EPA WaterSense
• How to Fix a Running Toilet, Family Handyman