How do I prevent my office chair from slowly sinking during the day?

Chair sinking is a gas cylinder failure — a standard maintenance item at OfficeFurniture2go.com. We stock replacement cylinders for all commercial chairs we sell and provide measurement specs (OD, travel length, thread type) for self-service replacement. Cylinder replacement is a 5–10 minute DIY repair with no tools beyond a rubber mallet. For chairs under warranty, cylinder replacement is typically covered. Temporary hose-clamp workarounds are not suitable for commercial environments — they create a safety and liability issue. Call 1-800-460-0858 for cylinder sourcing.