Use towels when installing, unplug all the power out from the PC itself. Make sure you ground yourself somewhere before getting in touch with components. Take a deep breath and GO...

Indeed, make sure you unplug all the hardware, short the PSU to start it (check google for the wires you need to short, or buy a shorted plug). As long as the hardware isn't powered water will not damage it. Before you start: Yes, you're going to get a leak somewhere, so make sure you've got towels ready and within reach (because you'll be using your other hand to stop the flow of water) 😉

As long as no power is going to the computer and a little water gets on it don't worry dry it off and let it sit for a few hours to air dry before putting power back to it water will only damage it if it is powered on.

most water cooling kits come with a shorter to start the PSU up on its own. Something like this http://www.vortez.net/index.php?ct=articles&action=file&id=19387

^That looks handy, I just used a paper clip.

^That looks handy, I just used a paper clip.

I dont use anything as i go straight into bios, fill my reservoir with manual connect/disconnection of the pump refill res- repeat etc.. The good old fashioned way never fails:) @OP... Once all your tubing is all connected just have some towels under the barb/compression fittings and waterblocks. Once the loop is full and its not leaking i would just leave for 30 mins. If you dont get a leak within this time from any of the fittings then you aint gonna get one unless you loosen fittings. You do not need to watertest for 12-24 hrs or more like some people do. Some people on ocuk i heard were testing for 3 days. Massive LoL and a waste of time. Water is one of the softest substances known to man yet it can penetrate anything, you will soon know if you have a leak within seconds nvm hours. If you just tighten everyting up and check it after the chance of you getting a leak are very small and even if you do it wil probably just be a waterdrop coming from 1 of the fittings. Just tighten it abit more and Job done. Also remember to run your pump at full speed when filling the loop out as weak links in the chain will be revealed because of the increased water flow and head pressure. Some of the compression fittings can be tough to screw on with your fingers only even though there supposed to sometimes they dont. So you may need to use so Pliers or Mole grips or something similar but you also may not have too. I had to use mole grips and a towel with mine to get the compression fittings on tight. I used a towel so the compression fittings were not marked are dented from the mole grips. Oh yeah never run your pump without water as it can permanently damage the motor.

I dont use anything as i go straight into bios, fill my reservoir with manual connect/disconnection of the pump refill res- repeat etc.. The good old fashioned way never fails:) Once all your tubing is all connected just have some towels under the barb/compression fittings and waterblocks. Once the loop is full and its not leaking i would just leave for 30 mins. If you dont get a leak within this time from any of the fittings then you aint gonna get one unless you loosen fittings. You do not need to watertest for 12-24 hrs or more like some people do. Some people on ocuk i heard were testing for 3 days. Massive LoL and a waste of time. Water is one of the softest substances known to man yet it can penetrate anything, you will soon know if you have a leak within seconds nvm hours. If you just tighten everyting up and check it after the chance of you getting a leak are very small and even if you do it wil probably just be a waterdrop coming from 1 of the fittings. Just tighten it abit more and Job done. Also remember to run your pump at full speed when filling the loop as out weak links in the chain will be revealed because of the increased water flow and head pressure. Some of the compression fittings can be tough to screw on with your fingers only even though there supposed to sometimes they dont. So you may need to use so Pliers or Mole grips or something similar but you also may not have too. I had to use mole grips and a towel with mine to get the compression fittings on tight. I used a towel so the compression fittings were not marked are dented from the mole grips. Oh yeah never run your pump without water is it can permanently damage the motor.

This sums it up real nice.

I warmed my tubing with a hair drier then put it on the compression fittings that worked great for me.

Heating up the hose works wonders. I know people who buy smaller ID hoses than their fittings just for that super tight seal.

ok thanks for the tips guys i also had such a psu starter with my kit 🙂 thanks all