The entire system was unfit for purpose, and in some cases dangerous.
The best route of action was to go through the system piece by piece and identify what components were serviceable, and chuck the rest in the bin!
The cooler itself was in good working condition, along with one of the Sankey keg couplers, so those were kept. The two fonts fitted to the bar were at their end of life; bits missing, rusted and generally in a condition I wouldn’t want to drink beer from, so these were swapped out for a pair of slightly better ‘used’ ones.
We suggested switching over from co2 gas to a 60/40 mixed gas, which we find causes less issues with temperature changes that can affect the keg top pressure.
Once all the scrap items were removed, we had a clear space to start installing the new system. A new water cooled python going to the condensating fonts, new beer lines, new gas pipe, primary mixed gas regulator and secondary valves. Due to the construction of the bar, the gas bottle was moved to the side wall of the shed for stability.