Once the chair is at the right height, wrap a hose clamp around the metal cylinder and tighten it as much as possible so it holds the chair in place. Replacement of the piston of your office chair can be challenging as well as sometimes not possible too. You'll have to take the bottom of the sofa off to access the mechanicals. The cylinder of the chair is not a very sensitive thing that stops working after a … Once you are done cutting lengthwise, you should now have a pipe with a long slit that will run from top to bottom. Following these steps, I preserved an, "That was pretty good, I have been wondering how to raise the chair with some kind of metal ring but the idea of PVC, "Haven't tried it yet, but this was a very good and helpful explanation of what to do and what I'd need (for mending. What is going on and why is it doing that? What Is The Most Appropriate Heel Height for Work? The PVC method of fixing the office chair is kind of similar to the hose clamp method. ", the chair from going down. Look no further. wikiHow is where trusted research and expert knowledge come together. If the cylinder looks dirty or greasy, clean this off first. But when it happens, it doesn’t mean out with the old office chairs and in with a bunch of new ones. wikiHow marks an article as reader-approved once it receives enough positive feedback. We spend a lot of money on our office furniture, especially on our chairs and after using the chair for a year, it starts sinking and won't stay up. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/80\/Fix-a-Sinking-Desk-Chair-Step-1-Version-2.jpg\/v4-460px-Fix-a-Sinking-Desk-Chair-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/8\/80\/Fix-a-Sinking-Desk-Chair-Step-1-Version-2.jpg\/aid3312687-v4-728px-Fix-a-Sinking-Desk-Chair-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"