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: I have a drain pipe with a 2 1/4" ID will the 3" fit?
Document: You need a clear vertical pipe with about 4 -5 &#34; space for it to fit and work. My pipe was rusty (about 40 years old) so I used Rustoleum and a wire brush to remove enough rust to allow this to fit. A screw turns to close the unit to the pipe. There are several units similar to this on the market in case you have a different installation.
I'm in a condo unit with a common drain for about 6 units. had a flooded basement recently due to plug in drain and subsequent backup from other units. I was looking for a means of preventing this from happening again. This fits in the floor drain pipe. A float hangs down and closes with rising water in the drain to prevent backup yet under normal operation allows water to go down drain.
I have a drain that has &#34;burped&#34; onto my basement floor three times in last four years. It looks like this will prevent this in the future.
Installed one of these in the throat of the bell trap drain in my basement floor. While on a train trip from Chicago to Seattle last April, there was a 24 hour deluge that hit our village, together with a 4 hour power outage, that left 16" - 18" of water in our basement. The flood ruined 5 of 6 appliances in the basement, including boiler, water heater, refrigerator, washer and dryer. Cost to replace the appliances was $7000.
However doesn't fit all drains the same. Had to make some adaptations with bolts and hope it holds in an. Emergency.
This is a great product, stops backup water before it gets out of the drain. But you do need to clean it every few months.
Great product that just comes short of being perfect. I experienced it's short fall and took on water during a major storm. Seen the flaw in action, made  a specific adjustment now its flawless.
Used these in our basement. Though they were  not exactly what I expected from the picture, they worked beautifully. I have these in all my basement drains now. They do slow the draining process, but work great to keep anything from coming back up during flooding.
THESE FLOOD GUARDS ARE AN ABSOLUTE GREAT PRODUCT. I HAVE INSTALLED THEM IN SEVERAL FLOOR DRAINS AND THEY WORK FLAWLESSLY. I HIGHLY RECOMMEND THIS PRODUCT!! !
it does let water exit. We haven't had a flood since I installed this, and may that always be the case.It was easy to install, certainly easier and cheaper than ripping up part of the floor, as one engineer recommended for a back flow valve.UPDATE 6/18/13: We've had several heavy rains and no back-up yet.
Answer: yes