Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: After ~1yr plunger gets stuck open and water continually flows- regardless of flush up or down. Any fix?
Document: I have had this installed for less than a year. Now the plunger gets stuck open and continually runs water. Also the dual flush has stopped working. I have adjusted it with no good results. Light flush or Heavy flush are the same now. I guess I can only blame it on the quality of the product.
Bought 2 over a year ago.1. Plunger doesn't always shut so water runs into the bowl until you notice it, smack it about 20 times or take it apart and put it back together. Im the only one in the family that notices and it alto of water. should be very noticeable.2. Handle gets stuck so you must manually lift it up. Guests don't know and i forget so the tank constantly has water running into it.
Completely rebuilt my toilets in two bathrooms about 8-months ago and have the same problem in both. After a while, the cable mechanism used to flush the toilet sticks, preventing the plunger from closing. If you don't manually move the flush handle back to the closed position the water will continue to run. One day we did not notice the handle was stuck in the half flush position resulting in a water bill exceeding $300.00: My normal water and sewage bill is $90 to $120.
3) When the flush valve closes, it makes a snap or clicking sound. Nonetheless, I'll be very happy with it if it last a good long time. Update April 2012: Only a couple of complaints. First, the lever can get stuck in the down position (full flush) which keeps the flush valve open so water runs continuously. If/when that happens, you need to pull the lever back up. I tried, but found no way to adjust the lever to prevent it from sticking.
For the first 2 years this worked well and I am sure it saved some water (the second star). Now the hose gets blown off  when reducing the water flow to the bowl and the handle gets stuck when flushing.
One main issues with this, with it in service in a high-use bathroom now for about 9 months:For the past few months sometimes when doing the solid waste option it will stay open slightly, allowing a decent bit of water to continually come into the bowl.
I bought this for two reasons: For the 2-stage flush mechanism and also because I was tired of the old "flapper" flush valves getting stuck open. I've been using this for a few months now and it works very well. It takes a little finagling to get set-up. You need to set the flush volumes: One I set for full volume and the other for about 2/3's.
I purchased and installed two of these units, and I am very pleased with them. They were easy to set up and adjust and actually make my toilets work better than before. The nature of the mechanism also prevents the flapper from getting stuck open and the toilet just running. My only caution to anyone installing one would be to not damage your old gasket seal between the bowl and tank.
On the next install for my master bath I will purchase a thinner gasket at my local hardware store and may change out the perviously installed gasket.I have noticed a difference in water consumption and the flush action is stronger so everything gets flushed out immediately. It's almost like the bottom drops out of the tank and everthing disappears in the blink of an eye.
I've had to do this about every three to six months, and it gets old. I see today that they offer an "upgraded" handle in their kits now, so hopefully that problem is fixed, but that doesn't solve my problem. While I liked the ease of installation and adjustment, it's a constant irritation because of the water running problem. Kind of defeats the purpose of saving flush water if the thing sits there an runs all night once or twice.
Answer: yes