1. Check the damaged capillary.
A bad sponge may compress on one side and protrude more on the other. Observe the capillary carefully to see which areas are squeezed. Understanding the essence of the problem is the first step to solve it.
Buy new materials
You need to buy a new sponge to replace the broken part. These sponges can be bought in many furniture stores and Internet websites. You need to measure the size of the sofa backrest to make sure that the sponge you bought fits your sofa.
Place the sofa on a flat surface.
You need to put the sofa on a flat surface to make it easier to touch the base. Use a wrench or playing card to open the clip on the back of the sofa and easily push the sponge out of the seat.
Replace sponge
Once your sponge is taken out, you can put a new sponge there. Make sure this sponge fits on the back of your sofa, and then put it in. You can cut or shape the sponge with scissors or blades to make it conform to the shape of your sofa backrest.
Step 5 reinstall the sofa
After replacing the sponge, you can reinstall the sofa. Install the seat and pillar support device, and install the new backrest sponge accurately and comfortably. Now that you have successfully repaired the back of your sofa, you can enjoy a comfortable experience on the new sofa.
In short, it is not difficult to change the sponge. As long as you have patience and some tools, you can finish this task. Replacing the sponge can also prolong the service life of the sofa, so always check the damaged parts and replace them in time.