Easy DIY Fix For A Slow Filling Toilet

I will walk you through a simple fix that any homeowner can perform to quickly fix a toilet that fills the tank slowly. The majority of tanks should fill in 30-45 seconds but mine took over 5 minutes so I knew there was an issue. I have found this fix to be the same solution to other common issues such as a toilet that continues to run or when you hear a loud whistle at the end of the fill cycle.

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DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission.

[nancyturner]

Flushing the toilet hasn't been an issue since my kids were little. As a great-grandma that has been many years. Lately I have had to plan that flush, before the 30 minute dog walk was just about right for the refill. It's when I got back from the walk and it was still going that I began my quest for a repair. Here comes YouTube, and your easy fix. I watched it, convinced even I could handle the repair. I ordered the seal using your guidance, and received it quickly. Then I stared at it for a few days, wondering what I would do if the repair was harder than I thought. Finally the toilet forced the issue, taking an hour to fill up. I made my backup plan to recover in the event of a fix failure, and started working on it about 30 minutes ago. I flushed, turned off the water, lifted the lid placing it safely aside. I turned the thingy and struggled to get it off. Why? I was making it much harder than I needed to. Stopped myself, and started again. It came right off. There was the little seal! It came right out, and I put the new one on being careful not to bend the pin. :) Cup in hand and held upside down, I turned on the water to flush out that little pipe. Turned the water off again, put the thingy back on, turned it to click, and attached that little tube. Wahlah! It works! Thank you for your very concise and simple instructions. You saved me a ton of money by not calling a plumber, and I now have confidence to try the next fix for a toilet fail in the future. Oh, and it took 5 minutes for the fix, 25 to write this!

[gregpochet]

I just buy the whole new floater system for ~$12! didn't know you can replace the seal inside for a lot less. Thanks!

[jilll.]

$2 later and toilet went from taking about 8 or more minutes to fill to about 30 seconds. AMAZING. Thank you SO much!!

[jme]

This is a fix worth remembering. Thanks!

[moboutmen]

Well presented. New gasket is the key. Dont just open and clean.

[markkempton]

I had no idea this was a thing. Very excited to try. We have a slow filler. It may be because it was sold as a "quiet" fill, but it's become so much slower than it was previously. It takes at least 90 seconds to fill the tank and bowl.

[rootpower]

I'll definitely give this a try, so far I've tried every little fix out there like playing with the adjustment screw and cleaning different pieces, so this will most likely do the trick.
Thanks for the video!

[rickcormier]

I put in the Korky valve with good results.

My toilets each use 3 gallons of water for each flush. I filled a slim water jug with water and used it to displace 1 gallon of water in the tank. Now I only use 2 gallons of water per flush and the tank refills in a third less time. The toilet still flushes great. I did this mostly because of frequent water outages and needing to store a few 5 gallon buckets of water for emergency flushing.

[johng.]

Nicely done! Just replaced a fill valve this weekend. Wish I knew there was another option. Thanks for the video~!

[NSFWHarold]

You just saved me the hassle of replacing the whole kit. One of mine has been doing exactly this for about a year. Now I don't have to climb under my toilet. Easy peasy. Thanks brother!

[websurfer]

Thanks - just did this 5 minutes ago for my elderly dads downstairs toilet. Worked like a charm!

[Dave-lddr]

Ironically I just did this a couple of weeks ago.I put a clear glass over the top of the fill valve while turning the valve back open a few times.While the tank was empty I poured some CLR down the fill valve & left it there for about an hour then flushed the fill valve out again just to be sure there was no lime or calcium in there blocking those vents.Everything works great & the CLR in the tank cleaned everything nice.You could probably just use vinegar.I almost bought & replaced the entire fill valve before changing that one part.Good video.

[markczarnecki]

Good vid. Also, while removing and reinstalling the cap, it helps to hold up the lever as you do it.

[Noname-bgnh]

Thank you for this video! I was planning on replacing the whole fill valve, but after watching this realized I only needed to replace the seal. This saved me time and money!

[joshuaz]

Yep that fixed it! Thanks so much, because like 90% of the videos say to replace the whole pomp itself.

[Shootsmith]

Plumbers grease helps the valve seal last even longer

[twsergio]

It worked! Easier than replacing the whole fill valve which is what I thought I would have to do! Thanks so much.

[jaym]

I love your attention to details. One of the reasons I love your channel.

[jogathome]

Such a simple and cheap solution to my problem. Worked just perfect. Just bought two more for the other bathrooms. 2:52

[rzh]

Yes, did this exact repair to one of my toilets a few years ago. That diaphragm is pretty much the whole operational deal to the Fluidmaster fill valve. Very reliable and a real bargain for the long run.