How best to refill Alphacool Core Flat Reservoir?

[Shepherd2026]

Hello watercooling pros,


I’ve been running custom watercooling for a few years now. My current setup uses an Alphacool Core Flat Reservoir with an integrated pump, mounted inside the case.


Access is the main issue. Refilling right now means attaching a tube to the top fill port and slowly pouring coolant through it. The problem is that the flow is painfully slow. It takes minutes for the liquid to go down, and I constantly have to lift, squeeze, and reposition the tube to get the coolant in. It’s honestly pretty annoying.


So my question is:

• What’s an easier or cleaner way to refill a loop like this?
• How do you usually handle small fluid refills over time when the reservoir isn’t easy to access?

Any practical tips or setup changes would be appreciated.


Thanks!

 

[Eddy]

The best option is to do it using a squeeze bottle. Alternatively, you can attach a hose with a fitting and fill it through the hose.

 

[kasperr]

Hey

I concur with the Shepherd there's something quite painful about filling this reservoir. I've mounted it vertically with the side fill-port at the top (attached image). It seems like air gets trapped constantly so the water doesn't flow to the pump when filling. I'm wondering if the fill-port on top is better, but I have tubing out the back of my case, so I can't really turn it and use the top port.