Leaking LHM fluid reservoir

We recently had a D Super 5  in the workshop with a hydraulic leak from near the front of the car.

Upon investigating we found the leak was from under the fluid reservoir and expected a loose or perished return hose to be the culprit. Inspection with a torch and mirror showed that it was the reservoir itself that was at fault, due to a tiny rust pit in the bottom of an otherwise rust free reservoir!

After emptying and removing the reservoir, it got a thorough clean inside and out and the hole was soldered up before refitting to the car.

Tiny pin hole in bottom of the LHM fluid reservoir