Round soft tube become flat after a week. What cause it and how to fix this?

[pureexe]

I started a custom water-cooling for a week and the round soft tube become flat.
Why does this happen and how to fix this?

Even remove a tube from the PC, The tube seems permanently turn into a flat tube and not change back to a round tube. I might need a new tube. but without knowing the cause, this situation will happen again.

 

PS. The water still flows through the flat tube.  it's not completely blocked.

 

[BobVonBob]

Normally flattening like this is caused by too tight of a bend, but that doesn't look very tight. What does the whole setup look like? I suspect you either have something seriously restricting flow or a pump that's much too powerful for the setup. Either way I think this is caused by suction inside the tubes.

 

It also looks like you might have squeezed the tube through an expansion slot? Deforming the tube like that could be the thing creating the pinch point that starts this.

[Poinkachu]

That looks like there were air inside which then sucked out completely using a vacuum cleaner.

Depending on material, When exposed to enough heat in that condition, then it is allowed to cool down still in the same condition.
It will keep the deformity. Same thing when someone making a bend on a plastic conduit / pvc pipe without bending spring.

[pureexe]

36 minutes ago, BobVonBob said:

Normally flattening like this is caused by too tight of a bend, but that doesn't look very tight. What does the whole setup look like? I suspect you either have something seriously restricting flow or a pump that's much too powerful for the setup. Either way I think this is caused by suction inside the tubes.

 

It also looks like you might have squeezed the tube through an expansion slot? Deforming the tube like that could be the thing creating the pinch point that starts this.

 

Here is the picture of the full setup.  The water inlet is connected to tap and the outlet is go directly to drain.

The flow rate is running about 23 Litter/hour (Note that LTT tap cooling video use 150 Litter/hour while der8auer use only 8 Litter/hour) I don't sure it too powerful pump problem because i can't measure the water pressure.

 

 

 

 

[AnonymousGuy]

Is there a pump in this loop or is it fed by the tap water supply?  If you have a pump on the outlet I can see it making enough vacuum suction that it collapses the tube.  This 100% looks like vacuum is being pulled.

[pureexe]

6 minutes ago, AnonymousGuy said:

Is there a pump in this loop or is it fed by the tap water supply?  If you have a pump on the outlet I can see it making enough vacuum suction that it collapses the tube.  This 100% looks like vacuum is being pulled.

It connects directly from the tap. There has no pump on both inlet and outlet

[Bad5ector]

18 minutes ago, pureexe said:

The flow rate is running about 23 Litter/hour (Note that LTT tap cooling video use 150 Litter/hour while der8auer use only 8 Litter/hour)

I sure hope you aren't running this 24/7.... 

 

Captain Planet is rolling in his grave.

[Blue4130]

What is the wall thickness of the tube? 

 

And why do you hate the earth so much?

[fonzz1e]

maybe yer tubes wall thickness is too thin

 

yo check yer tubes & valves

 

[DoctorNick]

12 hours ago, pureexe said:

It connects directly from the tap. There has no pump on both inlet and outlet

Are you sure there is no air coming from the tap? It's pretty normal that a tap has air sometimes. If a air pocket enters your system, then it might do this. Check if the system is air tight too. Are you seriously using tap water too cool your pc? Please tell me you're re-using water that you already use and not just pumping liters through the cpu block 

[AnonymousGuy]

On 6/22/2022 at 10:58 AM, Bad5ector said:

I sure hope you aren't running this 24/7.... 

 

Captain Planet is rolling in his grave.

It's not like the water forever disappears.  Goes down a drain, probably gets recycled back as reclaimed water.   Agricultural and Industrial dwarfs residential for water usage and contamination (we know nowadays that all of the "recycle to save the earth" programs were made by the actual problem companies so they could pass off blame on consumers instead of themselves)

[Demonic Donut]

On 6/22/2022 at 10:58 AM, Bad5ector said:

I sure hope you aren't running this 24/7.... 

 

Captain Planet is rolling in his grave.

Der8auer did a video on tap vs closed loop cooling. Ran some calculations on the amount of water/energy it takes to manufacture radiators and pumps etc. It turns out using tap water actually isn't that bad for the environment, especially when you factor in geographic location.

[Luggage]

Answered this on reddit but ...

 

"You are getting vacuum somehow, as you run from a tap to a drain in guessing you have a drop to the drain that makes the water “fall” faster that the tap is supplying water. If you put a res after your components and let it drain from an overflow outlet you should be able to get positive or neutral pressure in the hose."