I had to go out to some pet stores and buy a couple of things-I needed some one-way gas valves and when I found somewhere selling them, it was 1x for £1.60-1.70 or so, but could get two per pack for £2. Got myself a new water pump, much more powerful than the one I already have, and this one has two outlet settings so now I can run three condensers etc. at once. Or run two and use the smaller pump to drain almost-full coolant baths once the ice has melted.
Came across a fair few potentially useful things whilst I was at it, some multi-way hose connectors, tungsten in paste/putty form, finely divided and suspended in some sort of polymer, hopefully I'll be able to vaporize off the organic matter with a torch and sinter the tungsten, or else react it with a mixture of phosphoric acid and peroxide to dissolve the metal and form a salt I can use for plating resistant coatings onto things. Such as the graphite electrodes I'm currently shopping for, as well as more all-glass syringes, and some crucibles big enough for what I have in mind for them that include lids.
Found a neat little glass U-tube trap in one of the pet stores. No idea what they intended it for, but its also got a tap hole for a hose on one side, as well as at both ends, would be perfect for some electrolysis uses such as generating Cl2 from brine:)