drain water ?

I built my first closed loop WC around 3 years ago. I was a noob and i didnt really thought about adding a valve to drain the water.

Now i need to empty the loop to change the video card and i don't know where to start... How can i make sure that there is no water left in the loop ?

I tried 2 times to change the water in the loop to do some maintenance but everytime there was like half of the water that stays in the loop

Any ideas how i can safely drain the water from my loop and change the video card ?
Here's a picture of the WC loop right now:

Remove PSU, remove plugs from GPU block and drain liquid in container. I don`t have drain valve either and i drain it straight from res(tube mounted on case). I don`t see why it would not work.

i thought you had to let the pump run to drain the water ?

last time i tried most of the water was stuck in the res on the top

anarchoi said:

i thought you had to let the pump run to drain the water ?

last time i tried most of the water was stuck in the res on the top

Click to expand...

Oh no. Don't run the pump at all when you're draining. You're most likely running it dry and killing it. Turn everything down and unplug. Use gravity to assist you in draining. I can see if you possibly move the PSU out and maybe use a quarter to turn one of them plugs, you might be able to drain from there into a small bucket underneath it while having towels on the surroundings. Next time you put it together, rearrange the loop and add a drainage to it. It will make your life a lot easier. I sure know it did to mine.

I do not have a drain on mine and I have drained and refilled it five times just this past week (new hoses, changing loop order, changing ports, etc). Your rad is 3x larger than mine (I have a 120, just CPU loop) but I just unscrew the RAD from the case, plop it in a bucket and pull a hose off. That will get about 90% of the water out of the system.
I really need to add a drain though..

As GTXJackBauer mentioned, gravity is your friend. I do not utilize a drain hose/plug in my setup and have had no issues draining.

You could also try removing your res from the case and then drain.

I dont use a drain line either. I just remove cpu block and gpu which is quick and allows me to hang them both outside the case, and then take fitting off cpu, then it drains. Though usually I have to unscrew fillport on top of my reservoir to allow air in, so it will fully drain, plus tilt the case.

But no question using a drain line would make it easier.

I am really contemplating adding a drain and a fill to my set up though, just to make it easier with less hose strain.