How does air bleed out if a closed loop?

Setting Sun · Oct 1, 2013

Do I have to leave my full port open for air to bleed out? How does that work. This is my first water cooling experience

unksol · Oct 1, 2013

By definition a closed loop is closed. There is no air to bleed and no Ports to open

4Ryan6 · Oct 1, 2013

Setting Sun :

No close your fill port and rock the machine around, tilt forward, backward, side to side to get the air out, some have even turned their system upside down to get the air out. (Idon't recommend turning upside down as you could get air into the pump intake, but some have claimed doing it.)

Keep an eye on the reservoir level as you do this when it suddenly drops it's level stop the moving, refill the reservoir, recap it, and start again until you get all the trapped air out

Setting Sun · Oct 1, 2013

4Ryan6 :

Setting Sun :

No close your fill port and rock the machine around, tilt forward, backward, side to side to get the air out, some have even turned their system upside down to get the air out. (Idon't recommend turning upside down as you could get air into the pump intake, but some have claimed doing it.)

Keep an eye on the reservoir level as you do this when it suddenly drops it's level stop the moving, refill the reservoir, recap it, and start again until you get all the trapped air out

So where is the air going if the loop is closed?

4Ryan6 · Oct 1, 2013

Setting Sun :

4Ryan6 :

So where is the air going if the loop is closed?

The air goes to the reservoir, that's why you have to keep topping it off.

You do have a reservoir, Right?

Setting Sun · Oct 1, 2013

4Ryan6 :

Setting Sun :

The air goes to the reservoir, that's why you have to keep topping it off.

You do have a reservoir, Right?

Yes, haha. Sorry if my questions seem dumb I'm a total newb

4Ryan6 · Oct 1, 2013

Setting Sun :

I'm not meaning to come across to belittle you, if you don't know there are no dumb questions!

Sometimes we that have done this cooling for long term tend to forget that some are just learning, so I apologize if I offended you, that was not my intention.

The reservoir is your air elimination resource, if you have a pump with speed control it is best to run it at it's maximum speed until you get all the air out of the system.

Air gets trapped in the radiator end housings, water blocks, and even the tubing after the fittings sometimes, so moving the computer around will usually dislodge the air and allow it to get to the reservoir.

As the air reaches the reservoir the fluid level drops as the air in the loop is replaced by the flowing coolant, so you continually top off the reservoir as it drops.

Does that help?

Setting Sun · Oct 1, 2013

4Ryan6 :

Setting Sun :

I'm not meaning to come across to belittle you, if you don't know there are no dumb questions!

Sometimes we that have done this cooling for long term tend to forget that some are just learning, so I apologize if I offended you, that was not my intention.

The reservoir is your air elimination resource, if you have a pump with speed control it is best to run it at it's maximum speed until you get all the air out of the system.

Air gets trapped in the radiator end housings, water blocks, and even the tubing after the fittings sometimes, so moving the computer around will usually dislodge the air and allow it to get to the reservoir.

As the air reaches the reservoir the fluid level drops as the air in the loop is replaced by the flowing coolant, so you continually top off the reservoir as it drops.

Does that help?

Indeed it does. I appreciate the help alot.

joinasmashgamer · Feb 3, 2015

Watercooling newbie here too. Im also experiencing this with my Maelstrom 120k (closed loop right?). Now, i know that air bubbles are causing the pump to get some pitch noise. I would like to clarify, rocking around the machine when system's ON or OFF and how or to what maximum do i rock it? Im also afraid to might affect other parts of my computer as well. I would also really love to kick this pitch noise out. -_-

Motopsychojdn · Feb 4, 2015

You pick it up and rotate it through all possible axis' I'm one of the turn it upside down if you have to folks, most dont need to but I do due ti my loop design
Moto

Fincotts1 · May 7, 2015

4Ryan6 :

Setting Sun :

I'm not meaning to come across to belittle you, if you don't know there are no dumb questions!

Sometimes we that have done this cooling for long term tend to forget that some are just learning, so I apologize if I offended you, that was not my intention.

The reservoir is your air elimination resource, if you have a pump with speed control it is best to run it at it's maximum speed until you get all the air out of the system.

Air gets trapped in the radiator end housings, water blocks, and even the tubing after the fittings sometimes, so moving the computer around will usually dislodge the air and allow it to get to the reservoir.

As the air reaches the reservoir the fluid level drops as the air in the loop is replaced by the flowing coolant, so you continually top off the reservoir as it drops.

Does that help?

Does this mean a bleed port is unnecessary? I would like to know! Also i have a more indepth version of this question on my page please could you check it out and help me? Thanks

4Ryan6 · May 7, 2015

Fincotts1 :

Providing a link to your thread would be helpful?

The reservoir coolant fill port is your air bleed port.

Some use an installed coolant drain port if that's what you are referring to?

I personally have never installed or used one of those IMO it is just not necessary, along with, flow meters, and cooling HDDs and the motherboard VRs as well.

Fincotts1 · May 7, 2015

4Ryan6 :

http://www.tomshardware.co.uk/answers/id-2636454/bleed-...

Lol sorry haha (im a newb to toms hardware)

Anyway ok so if thats the case why does te frozenq liquid fusio reaction come with 3 ports on the bottom and 1 on the top?!

4Ryan6 · May 8, 2015

Fincotts1 :

One of those ports is for the return line and one is the output feed line, the other is totally optional some even put a G1/4 threaded temperature sensor in it, some just plug it with the provided plug as a general rule it should never be used as a drain port.

Why?

Because a drain port using all logical common sense should be located at the absolute lowest point of the loop, and the reservoir is not the lowest point as it is always mounted above the pump level.

Why?

Because the pump intake always has to be supplied with direct coolant access, that's the reason an independent reservoir is always above the pump.

Understand?

4Ryan6 · May 8, 2015

unksol :

In a perfect world maybe.

There is always some air even in an AIO CPU cooler, it is almost impossible to get all the air out there will be a lost bubble of air in there somewhere.

A closed loop means it is closed to outside contaminants it is not open to the environment.

Even a full custom loop ends up eventually being a closed loop after all the air is bled from the system, but even a sealed system gains air after operating a while and the reservoir has the be topped off on a regular basis.

Fincotts1 · May 8, 2015

4Ryan6 :

Fincotts1 :

One of those ports is for the return line and one is the output feed line, the other is totally optional some even put a G1/4 threaded temperature sensor in it, some just plug it with the provided plug as a general rule it should never be used as a drain port.

Why?

Because a drain port using all logical common sense should be located at the absolute lowest point of the loop, and the reservoir is not the lowest point as it is always mounted above the pump level.

Why?

Because the pump intake always has to be supplied with direct coolant access, that's the reason an independent reservoir is always above the pump.

Understand?

Yes, i think so,

so how do you bleed the air whilst your are filling it up, if they're the same thing?
and can i mount a drain port o my pump? i have 4 ports on mine (VPP655)

4Ryan6 · May 9, 2015

Fincotts1 :

http://www.tomshardware.com/forum/277130-29-read-first-watercooling-sticky

Solar Eclipse · Mar 1, 2016

Setting Sun :

4Ryan6 :

Indeed it does. I appreciate the help alot.

i know its been awhile from the post but adding a drop of dishsoap can help you bleed your system

rubix_1011 · Mar 3, 2016

Solar Eclipse :

Noooooooooo! Please don't recommend using the dish soap method. If you're getting froth and bubbles, the loop components were not adequately cleaned prior to building the loop. If you're just getting air bubbles, be patient, they will collect and you can displace the air by adding more water to the reservoir.

I am closing this thread as it has been dormant for almost a year and a best answer was selected in 2013.

How does air bleed out if a closed loop?

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