Stixall. Bit of an excessive amount, but smaller tubes aren't much cheaper. Used it on a bunch of stuff to stock small persistent leaks. And random bits when clear glue was needed.
Going with this Stixall, mainly because it'll ge here sooner! I'm going to try some more PTFE tape first, see if that helps!
So, I finally got to the root of the problem, there are 2 large cracks and one small cracks in the tube! I'm so annoyed as it means my PC is basically out of action, which as previously stated is suboptimal! So, Aquatuning (alphacoolings main distrubutor) sells them for around £14, but they charge £10 delivery, which I kind of resent because A: thats really expensive and B: its their product that failed! Also its currently listed as delivery in 1-2 days, which I don't know means I'll get it in 1-2 or they're expecting stock in 1-2 days. Either way, should I trust and spend more money on something that has already failed once? What would you suggest, as I obviously don't want to be spending loads of money, but at the same time I need to get it back up and running ASAP... Edit: I just realised the tube is reversible, I'll give that a go first!
That seems to have fixed it for now! So I'll just have to grab another tube for when this one inevitably breaks! I guess I'm buying my next GPU block from Aquatuning then...
Email from aquatuning: TRICK OR TREAT - it is your choice: Discount code: AT2020H05 get 5% on all products (also already reduced items) or Discount code: AT2020H10 get 10% on Alphacool or Discount code: AT2020H20 get 20% on Phobya valid from 30.10.2020 to 01.11.2020
To be fair the cracks happened because there was too much pressure in the loop. You should definitely invest in a pressure release valve or membrane.