How Do You Fix Hydraulic Bar Stool?

A hydraulic bar stool that sinks or refuses to hold height needs a new gas cylinder, since the unit is a sealed nitrogen component that cannot be refilled. This guide starts with a symptom by symptom diagnosis, because loose lever linkages, slack seat plate screws and worn swivel bearings all mimic cylinder failure and cost nothing to correct. From there we cover the tools you need, how to break the friction fit taper joint using penetrating oil, a rubber mallet and a pipe wrench, the four measurements required before ordering a part, how to seat the new cylinder, the hose clamp workaround and its limits, and the habits that shorten cylinder life. There is guidance on freeing the taper joint safely, disposing of a pressurised cylinder responsibly, and understanding the three real causes of failure: side load from leaning, shock load from dropping onto the seat, and moisture gathering at the collar in a kitchen....