Yheahh..it doesn't work, leave it.
Get this, it is a generic water cooling block.
It's cheap at 9$. Just connect it to any tubing that fits it, and add a water pump (these are available for 200rs at decoration stores and fish tank stores). Good quality liquid cooling in under 1k. The same exact shit, if you buy it from a branded 'gaming' parts provider, it costs 10k.
After wasting 6k on air cooled heat sinks (CM 212 + 2 high pressure fans +3 case fans), I realized that this was much cheaper, much more cooling efficient, less noisy and no dust issues.
This is the EVGA CLC 280 (10krs). Not worth the price. You could put that money in a better GPU.