Toto needs to flush twice

mensy

mensy

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I have a new Toto toilet in one of our bathrooms. I'm not sure which model, but it uses the Power Gravity system.

The problem is that the toilet doesn't always fully flush the first time. Every so often, when I push the handle to flush, I see the water about to go down and flush, but it doesn't quite get there. I then have to wait until the tank refills with water before I can flush again. The 2nd flush always gets it done. This happens maybe 10-20% of the time.

Any ideas? Should I get the installers to come and redo the install? Do I have a bad flushing valve mechanism?
 
toto_cst854_inside_tank.jpg

Does the black tube go into your overflow tube?
If not, you will not have the water at the right height in the bowl.
 
I think your problem really isn't a problem. Unlike old full flow toilets, the tank of the new toilet holds more water than is used to flush. There are 2 reasons for this. The added water height increases the pressure of the flush and, if additional water is needed for an extra heavy load, if you hold the handle up for a couple of extra seconds, the rest of the water in the tank is released. I'm saying that it sounds to me like your toilet is working as was designed.:)
 
Yes, the blacktube is going into the overflow...exactly like the photo above. I'm thinking maybe the flusher unit needs to be adjusted higher (so more water fills the tank and more water fills the bowl). Could this be the problem? How do I adjust the Power Gravity unit higher anyway? I tried the twist counter-clockwise and pull up, but it didn't budge and I didn't want to break it. Suggestions?
 
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The level in the tank is normally about 1" below the top of the overflow. If it isn't there, there's a clip on the tower...remove that, then turn the top about 1/8-turn to unlock, then you can pull it up or push it down to adjust the level. Turn it back to lock it back in place. You can reinstall the clip or not. But, they're usually adjusted properly in the factory.
 
Thanks...where do I find the clip on the tower? At the base or on top? Do I need to remove the blue cap?
 
Do not change the adjustment.
Unless you change the overflow tube to a higher one, you will just wind up raising the water and having it continually pour down the overflow.

If you need a bigger flush, just hold the handle down a second longer.

If you try to twist the fill valve, you will either break the tab below, or the fill valve itself.
 
Sounds like the flapper chain needs some adjustment to me, if it is snapping shut quickly when you push the handle and not letting enough water down.

Funny, I though this brand of toilet was not as sensitive to that issue. I guess they all are.
 
I installed an Ultramax with the GMAX flushing about six years ago. I can only tell you that since it was new, i've had the same issue. I've found it seems to be more of training yourself to flush the Toto differently than you would an older toilet. If you hold the lever fully down for 1-2 seconds until the water flows 100%, it flushes perfect every time. It's when you release the flush lever real fast or don't push it all the way down that you get a "misfire" (LOL) that doesn't flush 100%. I'm curious if anyone else thinks this...
 
lee_leses said:
If you hold the lever fully down for 1-2 seconds until the water flows 100%, it flushes perfect every time. It's when you release the flush lever real fast or don't push it all the way down that you get a "misfire" (LOL) that doesn't flush 100%. I'm curious if anyone else thinks this...
Click to expand...

I'm assuming that you are commenting on the fact that if you hold the lever, it will completely empty the tank. These toilets are not designed to completely empty the tank. They use the extra height of the water to get the power of the flush but the flap will close prior to emptying the tank. Does releasing the handle quickly result in the waste not getting cleared? If so, there may be a problem. One thing to note is that the flush of these and similar designs is that the flush is very quick. No bowl filling and lots of swirling around the bowl before things drop through the trap. I will say that if you do flip the lever not far enough before releasing you will not flush or get any noticeable action. As long as the chain is properly adjusted, you should be able to push the lever all the way and release immediately and get the designed flush.
 
Thanks for all the help guys.

Just some clarification...

I don't think the problem is because the flap closes too soon. When I open the lid to see what's going on - whether I push the lever down as normal, hold it down for 2 seconds, hold it down for 5 seconds - it doesn't always flush on the first time.

Looking at the water level, it looks to be about 2 inches below the overfill hole. According to Terry's post, I can't adjust the water level by the twist-fill valve technique. So how do I get the water level higher???
 
You don't. First thing you have to do is forget what you think you know about toilets. Low flow toilets work differently than the old full flow units. Yes, the flapper will close very quickly, it's supposed to. In the early days of low flow, many manufacturers tried to use their old technology with less water... it didn't work and many people though they had to live with a plunger and clogged toilets. Your Toto is completely different. A normal flush does not use all of the water in the tank, only if you hold the flush lever a little longer will the entire tank drain. This is very rarely necessary.
 
mensy said:
Looking at the water level, it looks to be about 2 inches below the overfill hole. According to Terry's post, I can't adjust the water level by the twist-fill valve technique. So how do I get the water level higher???
Click to expand...

When you say it does not flush properly, waste is not cleared from the bowl when you push the lever, correct?

If by overfill hole, you mean overflow tube. That does sound like it may be a bit low. There should be a mark on the overflow tube that is about a half inch from the top. As an experiment, you can manually add water to the tank to get it to the fill mark or push down on the float to open the fill valve to get the water up to the fill mark. Once you get it up to the correct level. Flush it and see if now it seems to work normal. If so, you need to adjust the fill level. If not, you may have some sort of obstruction. The thing is that when you hold lever, I would think that enough water should flow to get it to flush. On the other hand, it may not have enough force if the water level is too low.

I have not tried to adjust the level on one of these fill valves and therefore I am not familiar method. I seem to recall that there may be a white plastic piece inserted into the stalk that may keep it from twisting and unlocking for adjustment. As was stated before, turn off the water before attempting to adjust the level.
 
Hi Mensy,

I hope you have resolved this, but if not...I was also having trouble with my Toto. I ended up calling Toto @ the number listed on the lid to the tank. They have excellent technitions who had me troubleshoot it while they waited on the phone. They ended up sending me a new mechanism. Now it works fine.
 
opposite of Mensy's problem - overflow!

I have a one-piece Toto 884 toilet. The water level is too high causing a constant running through the overflow hole.
How do I adjust the fill valve to lower the water level?? Both my water bill and I thank you for any help!!

www.terrylove.com/korky
Check this link, it may need a new assembly cap.
 
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Unless you've changed something, no...the seal in the valve is leaking, and you need to replace it, or it could have some debris caught in it and can't close. If it is a Korky valve (made for them - it has the Toto logo on it instead of Korky), it takes about 30-seconds to replace after you've turned the water supply off. You can pick one up at Lowes or any decent plumbing supply house for less than $3. It's a cap, about the diameter of maybe 1.5" with a gasket seal in it.
 
Toto Power Gravity

I have a question. Just how do you get the blue cover off the top of the unit so you can check inside. I just see instruction that say, remove the blue cover, like I know who to do that. Wish I did.
 
IF you squeeze it a little on the sides where the two halves mate, you release the clips and can pull it off.
 
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