Making a broken hydraulic and revolving chair reusable....
... well - by dropping the hydraulic and revolving features ! I had a couple of chairs in my study room with hydraulic lifts (not that I needed this feature - the chairs were always set at their highest) and 5 revolving casters at the base. Both of them had their hydraulic struts at the end of their life, which means they frequently sank without notice ! Couple of weeks back in a lazy afternoon weekend, I got a little too comfortable on one of them when one of the legs gave away, and I crashed to the floor, face up, and in the process hurt my right shoulder (enough to keep me out of tennis for couple of weeks). The broken base : The chair was now unusable and dangerous , so I planned on decommissioning it and getting a new one (now I DID NOT need a new one with hydraulic lift and revolving features). But at second thoughts, other than the broken leg, and the unusable gas strut, everything else was fine with the chair. So I took it up ...