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Why Does My Office Chair Keep Sinking?

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Step By Step Guide How To Fix A Sinking Office Chair

We spend a lot of money on our office furniture, especially in our office chair because of long hours sitting. One of the main problems everyone facing in their chair is after using the year around a year; it stops functioning like a brand new one. If you’re wondering “why my chair keeps sinking”, it is probably because it uses a pneumatic system. Since the pneumatic technology is used to manage moderate weights, there is little to no chance of fluid leaks.

Even though they seem brand new and in good form, but they still sink and are not working. So, if you think it’s time to replace the chair or buy a new stop for a while because you can save your money by just following some simple steps to fix your sinking office chair.

Main Reasons Behind Chair Sinking Issue

A sinking office chair never signifies the comprehensive chair is bad. There are a number of basic reasons behind the sinking of office chairs. After the use of several years, your seat will not hold the place it is set at. The lever that normally lets you adjust the height begins a valve in the piston on the base of the seat, which allows the air to move in and out. Ultimately this valve will flow, and your seat will sink to the deepest place as soon as there’s a weight on it. Appropriate oiling and lack of maintenance are also other reasons behind the sinking of this seat. Individuals frequently don’t focus on the upkeep of seats that cause difficulties like sinking.

Fix The Sinking Issue Of Your Chair

Methods To Fix Office Chair Sinking Problem

These Are The Methods You Can Use To Fix Your Chair Problem.

Oiling And Cleaning You’re Chair For Sinking Fix

First of all, without investing any amount in the purchasing of a new part of the chair, try to clean and oil your chair so you can check if its mechanism starts functioning. You need to clean the cylinder first, and after the cylinder, try to oil the cylinder with the lever because sometimes dust and rust affect the issue in sinking.

Duct Tape And Clamp Method For Chair Sinking Fix

One of the most common techniques you can use to fix your sinking issue is the duct tape and hose clamp method. But the only issue is it won’t fix your chair completely, but it can hold your chair for a couple of days. For this method, the size of the clamp should be around 13/16” to 1-3/4 diameter. You can use duct tape to help the clamp from descending.

PVC Pipe Method To Fix Chair Sinking

For this technique, you will need a PVC pipe. The diameter of the pip should be similar to your cylinder so it can join the seat and wheelbase properly. Get a pipe a bit bigger in height as your cylinder so it can give you the extra height of the chair. Check the below video for a complete guide of how to use a PVC pipe to repair a chair.

Replace The Pneumatic Cylinder To Fix Chair Sinking

Yet another way of fixing an office chair that keeps sinking is by replacing its pneumatic cylinder as it tends to wear out over time. If it is the cause of your sinking office chair, then you would have to get it replaced by a professional. DIY is usually not recommended as installing a new pneumatic cylinder can be a tedious task.

Replace The Cylinder To Fix Chair Sinking

Well, if nothing works, then you can change the cylinder of your chair. The replacement of the cylinder is much more easy and simple as you might think. The majority of the chair is built in the same manner so you can replace its part easily like a cylinder to fix the sinking problem.

Jubilee Clamp / Jubilee Clip Technique To Fix Chair Sinking

A jubilee clamp is basically a device that secures hose pipes on taps. You can get that jubilee clamp (from your nearest hardware store) to wrap it around the cylinder of your sinking office chair. You will also require a duct tape and a screwdriver for your hydraulic chair repair. This technique is based on the use of a jubilee clip. You can get this clip easily from any hardware store near you. For this method, you need a long jubilee clip, duct tape, and a screwdriver. Slide the plastic up or down around the cylinder. Before you tighten the clip, make sure the surface of the cylinder is clean and has a perfect firm of grip you can do it by wrapping duct tape around the uppermost visible part of the cylinder. After you are done with it, sit on the chair and test it if the height is fine and working perfectly and not sinking again if the issue is not solved, try again and rearrange the clip placement.

Tighten The Pipe To Fix Chair Sinking

According to the type of your chair, you will need to eliminate the legs. This will uncover the piston. Move on the pipe clamp first. It’s possible to cut two small shards of pipe protection foam and slip under the clamp and one under the fitting. Pick the height you want for the chair and twist the pipe until it is firmly held on the piston. Now when you sit back on your chair, it will not have the ability to go down. This will temporarily fix the sinking issue of your seat.

Drill Screws For Fixing Chair Sinking

Set your seat to your preferred height. Flip it on its back, so the wheels are facing your feet. Remove any cover in the event the seat has. Once you’ve done this complete procedure, it’ll be hard to alter the height in the future. Make certain it is still the correct height for you until you continue, and you may want to set a mark in this place with a marker to make it easier. Use a drill for making a hole in the middle of the shaft right where it meets the base of the chair, but do not neglect to use a drill bit that’s the exact size for the screw you’ll be using. Don’t strip the screw when you plan to change the elevation in the future. If you do this correctly, the chair will no more sink and can be used again as a new chair.


Now you have all the information you need to fix your office chair. All these tips can help you fix the sinking issue of your chair and save your time and money from buying a brand new chair.


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