This started to happen very suddenly. One of the toilet clauset keeps draining every 20 minutes automatically and the water is filled up the level. Once again it drains after 20 minutes. I checked inside and couldn't see anything in terms of opening of the valve or something.

Can someone please help with any other suggestions.

Thanks

Replace the flapper valve. It's leaking.

Hello ashlandman,

It looks like your flapper valve is leaking and it very easy and not expensive to replace it; please click on the link below it will tell you to check and how to replace the flapper valve, Good luck.

John

YouTube - Fix a Leaking Toilet Flapper Valve for Little or No Cost

I repeat response #1: replace flopper. Make sure you put in exactly the same model as the old one. Take the old one with you to Home Depot and show it to their Expert. Visually inspect new flopper for imperfections and warps. Then proceed to the cash register.

Thanks for all the replies. I tried the one suggested in the YouTube. The frequency of the drain now reduced from 20 minutes once in two hours. I believe as per other suggestions I have to replace the flapper valve. I will do that and post back my results.

Thanks once again

Get different flopper. Inspect it before you buy it for warping and imperfections. Not every new flopper will seal perfectly

Quote:

---

Originally Posted by ashlandman

Thanks for all the replies. I tried the one suggested in the youtube. The frequency of the drain now reduced from 20 minutes once in two hours. I believe as per other suggestions I have to replace the flapper valve. I will do that and post back my results.

thanks once again

---

First make sure the flapper's minstalled correctly. A flapper replacement is one the easiest repair jobs going. Let me show you how. Shut the water off at the angle stop located under the tank and flush the water out. If you have a newer toilet you will see where the old flapper hooks onto the base of the white overflow tube. On a older type with no hooks the flapper has a ring that slips down over the overflow tube to the seat. If your tank has hooks, take a sharp knife and cut the neoprene ring off on the marks provided and hook the flapper on the hooks. Now attach the linkage,(chain) to the flush lever. The chain should have 1/4" of play when the flapper's seated. Too much play and the flapper will close too soon. Too little and the will not be allowed to raise high enough. Set your water 1/2" below the white overflow tube and be sure the little tube that comes out of the top of the ballcock is connected to the white overflow tube. Also check the seat for nicks or rough spots. If you find any click on back. Good luck, Tom