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I have a dual bay pump reservoir combo question

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Jan 19, 2017
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System Name Core p90
Processor I7 9700k
Motherboard ASRock Z390 Phantom Gaming 4
Cooling Ek supremacy evo cpu block/nexxxos ut60 rad 480mm/D5 vario pump 310mm reservoir combo.
Memory Trident gskill 4x8gb 3000mhz (temporarily running 2x 32gb ddr4 corsair vengeance 3600mhz)
Video Card(s) Nvidia Founders edition rtx 3080 10gb
Storage M.2 Intel 660p 1024gb, 4tb 7200 rpm black Western Digital hdd
Display(s) Acer x34 predator 3440x1440p 120hz g-sync ultrawide 21:9 monitor
Case Thermaltake Core P90 tempered glass edition
Audio Device(s) On board
Power Supply Thermaltake smart m1200w
Mouse Razer Basilisk v3
Keyboard Logitech G910
Software Windows 10 64bit
I've got this dual bay pump reservoir combo which I've been using for years. I was curious if the pump can be detached from the dual bay Reservoir. I'm thinking I could hook it up to a vertical transparent Reservoir instead. I already have a transparent Reservoir I'm not using but I don't know if they're compatible together. The thought of separating the dual bay Reservoir from the pump never occurred to me before.

If anyone here is familiar with my specific dual bay reservoir pump combo let me know

Model is XSPC D5 Dual Bay Reservoir/Pump Combo V2
1000038416.jpg
 
I would imagine so. That collar around the pump should come off. It’s the standard D5 pump. It would make sense for it to be serviceable that you can detach that pump. Also on your vertical reservoir, is it for a D5 or a DDC pump??
 
I would imagine so. That collar around the pump should come off. It’s the standard D5 pump. It would make sense for it to be serviceable that you can detach that pump. Also on your vertical reservoir, is it for a D5 or a DDC pump??
I presume D5 is a standard size and not a classification only.
 
Turn that collar anti-clockwise to detach the parts.
--->
from 2:07 on
Thanks I managed to find the user manual. Here's a screenshot in case someone comes here looking for the solution

1000038424.jpg


This is the pump once detached from the dual bay reservoir and this is the vertical Reservoir I have. I'm not sure I can match them together. Maybe I need to buy another Reservoir. Unless the pump inlet and outlet have threaded access. But even then I'm not sure how clean I would be able to make it. I'll jabe to do some thinking

1000038427.jpg

1000038426.jpg
 
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Wow I finally came to an important realisation lol
I've had this misconception in my mind for years now. Basically I always thought that water loops were supposed to feedback into the Reservoir.

Now that I had to spend a lot of time trying to understand my pump. It got me to understanding pump tops. Basically this pump I have must probably be the mcp655 from swiftech, the vario version. That pump is built with a vertical and horizontal in/out thinking. Meaning both the in and out of the Waterloop is supposed to be connected to the pump top and the Top of the Reservoir is supposed to become the full port.

Most reservoirs I've had only have one port at their top for filling (with no venting port to vent the air out). I suppose here is where a good radiator with multiple ports comes in handy (potentially for venting)

Here is a screenshot of my old computer. Just take a look at my water loop routing... Obviously it worked, I guess the way the pump/top/reservoir combo was built, there is a pump inlet I couldnt see. But yeah, in the sceenshot you can see I was using the top of the Reservoir as the Waterloop return instead of using it as a fill port.

Now that I understand, I added arrows that show where the out in and fill port should have been. Basically all my tubes should have connected to the bottom of my Reservoir, not the top. Blue arrow would have been the out, red arrow the return and yellow circle fill port
1000038504.jpg
 
you can rotate that collar and set the D5 pump free..though depending on your case that pump+res combo is still good..
 
Wow I finally came to an important realisation lol
I've had this misconception in my mind for years now. Basically I always thought that water loops were supposed to feedback into the Reservoir.

Now that I had to spend a lot of time trying to understand my pump. It got me to understanding pump tops. Basically this pump I have must probably be the mcp655 from swiftech, the vario version. That pump is built with a vertical and horizontal in/out thinking. Meaning both the in and out of the Waterloop is supposed to be connected to the pump top and the Top of the Reservoir is supposed to become the full port.

Most reservoirs I've had only have one port at their top for filling (with no venting port to vent the air out). I suppose here is where a good radiator with multiple ports comes in handy (potentially for venting)

Here is a screenshot of my old computer. Just take a look at my water loop routing... Obviously it worked, I guess the way the pump/top/reservoir combo was built, there is a pump inlet I couldnt see. But yeah, in the sceenshot you can see I was using the top of the Reservoir as the Waterloop return instead of using it as a fill port.

Now that I understand, I added arrows that show where the out in and fill port should have been. Basically all my tubes should have connected to the bottom of my Reservoir, not the top. Blue arrow would have been the out, red arrow the return and yellow circle fill port View attachment 396019
Quite the artistic set up. I see the pump has variable speed so remember the pump affinity laws when adjusting.

Typically in a pump system the pump is always at the lowest point.
 
you can rotate that collar and set the D5 pump free..though depending on your case that pump+res combo is still good..
Yeah that photo with green coolant is from an old pc I do not have anymore. I used it here only for educational purposes for myself.

Quite the artistic set up. I see the pump has variable speed so remember the pump affinity laws when adjusting.

Typically in a pump system the pump is always at the lowest point.
I'm not sure I understand. I'll go read that link of hours. I always thought the lowest point in a Waterloop should be where the drain port is. So you're saying the drain port should be located somewhere on the pump top?

Edit: I read the link. Lol all that math. All fine and dandy but what point are you trying to convey by mentioning affinity laws? What conclusions am I supposed to draw from that we link?

Edit 2: Aaaah I'm now realizing you probably said that because of my weird tube bends I had in my old pc. Yeah it was Definetlly done for the looks and not for optimal performance or power efficiency of the pump. But that was way back then. My new pc uses the old mcp655 dual drive bay pump res combo at the moment. I simply hooked it up to my pc because my previous pump had died (this current pc I use doesn't have any weird artistical tube bends and travel distance)

Basically I had never seen someone pull apart a mcp655 pump. When I did see it on YouTube I saw what the D5 vario underneath all that jazz looks like. And then when I was someone pull it apart and put it together with a new pump top thats when my mind clicked and I realized that the top port of a Reservoir is meant to be a full port. I thought the water return had to go to the pump top... But there too I was wrong apparently...

The water is supposed to go back to the Reservoir, but not through the port at the highest point of the Reservoir but a port somewhere towards its bottom right above the pump top.

Or so I'm told

It's weird because when I look into the web description of the product I had purchased back then, it looks like inlet 2 cannot be used when the Reservoir is installed on top of the pump top. So no wonder I used the top of the Reservoir as water return by then. I noticed there was a small port right next to the Reservoir top port. I remember using it back then to fill the loop.


That was what I had purchased. So looking back I now realise that in my previous pc I had no choice but to use the top of the Reservoir as water return. But back then I made the mistake of sending the pump outlet feed into the radiator. I should have sent it straight to cpu. It still worked mind you. But that was my first amateur venture into pc water cooling. I had zero experience back then lol.
 
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Yeah that photo with green coolant is from an old pc I do not have anymore. I used it here only for educational purposes for myself.


I'm not sure I understand. I'll go read that link of hours. I always thought the lowest point in a Waterloop should be where the drain port is. So you're saying the drain port should be located somewhere on the pump top?

Edit: I read the link. Lol all that math. All fine and dandy but what point are you trying to convey by mentioning affinity laws? What conclusions am I supposed to draw from that we link?

Edit 2: Aaaah I'm now realizing you probably said that because of my weird tube bends I had in my old pc. Yeah it was Definetlly done for the looks and not for optimal performance or power efficiency of the pump. But that was way back then. My new pc uses the old mcp655 dual drive bay pump res combo at the moment. I simply hooked it up to my pc because my previous pump had died (this current pc I use doesn't have any weird artistical tube bends and travel distance)

Basically I had never seen someone pull apart a mcp655 pump. When I did see it on YouTube I saw what the D5 vario underneath all that jazz looks like. And then when I was someone pull it apart and put it together with a new pump top thats when my mind clicked and I realized that the top port of a Reservoir is meant to be a full port. I thought the water return had to go to the pump top... But there too I was wrong apparently...

The water is supposed to go back to the Reservoir, but not through the port at the highest point of the Reservoir but a port somewhere towards its bottom right above the pump top.

Or so I'm told
Ahhh sorry for the confusion, the pump affinity laws are for your variable speed pump, it's the relation between flow-rate, pressure and power.

So for pump position being at the lowest point that falls under good piping/pump practice, drain should be at the lowest point as well - usually one on the pump itself, and bleed or air release valve should be at the highest point. A lot of systems don't even have a reservoir so to speak, in a pc cooling system I would guess having the reservoir at the high point would be best so any air could bleed off there.

Here this may help a bit without getting too in-depth, and yes this stuff is gospel in industry but can/should be applied to all pump systems, even the small basic PC cooling loops.

cheers

edit "The water is supposed to go back to the Reservoir, but not through the port at the highest point of the Reservoir but a port somewhere towards its bottom right above the pump top."
Well typically you would want the fluid to come in under the fluid level in the reservoir, however for a PC loop system with no instrumentation I would probably have it discharge at the top of the reservoir so you have a visual indication of flow-rate.

I don’t have liquid custom loop and probably never will but if I did here is a simplified sketch of how I would run it.

Edit 2 - if you wanted real e-peen I guess you could throw in an E&H PicoMag for flow and temp measurement ;)
 

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Ahhh sorry for the confusion, the pump affinity laws are for your variable speed pump, it's the relation between flow-rate, pressure and power.

So for pump position being at the lowest point that falls under good piping/pump practice, drain should be at the lowest point as well - usually one on the pump itself, and bleed or air release valve should be at the highest point. A lot of systems don't even have a reservoir so to speak, in a pc cooling system I would guess having the reservoir at the high point would be best so any air could bleed off there.

Here this may help a bit without getting too in-depth, and yes this stuff is gospel in industry but can/should be applied to all pump systems, even the small basic PC cooling loops.

cheers

edit "The water is supposed to go back to the Reservoir, but not through the port at the highest point of the Reservoir but a port somewhere towards its bottom right above the pump top."
Well typically you would want the fluid to come in under the fluid level in the reservoir, however for a PC loop system with no instrumentation I would probably have it discharge at the top of the reservoir so you have a visual indication of flow-rate.

I don’t have liquid custom loop and probably never will but if I did here is a simplified sketch of how I would run it.

Edit 2 - if you wanted real e-peen I guess you could throw in an E&H PicoMag for flow and temp measurement ;)
Yeah that sketch of yours makes a lot of sense but I don't see how it would be possible with the dazmode product I linked earlier. That being said, I'm sure there are other products out there that could be better options. I've never seen a Reservoir that has a port somewhere among the glass like in your drawing. The ports are usually at the top and the bottom
 
Yeah that sketch of yours makes a lot of sense but I don't see how it would be possible with the dazmode product I linked earlier. That being said, I'm sure there are other products out there that could be better options. I've never seen a Reservoir that has a port somewhere among the glass like in your drawing. The ports are usually at the top and the bottom
Ya just a simplified sketch, what matters is pump is the lowest point in system and return is top of reservoir (ideally).........as for the dazmode ya I'm not familiar with small pc pumps sorry.
 
Ya just a simplified sketch, what matters is pump is the lowest point in system and return is top of reservoir (ideally).........as for the dazmode ya I'm not familiar with small pc pumps sorry.
It's all good. I'll figure it out eventually. The only reason I'm putting myself through all this is to get

1. Better cooling
1. Better overclocking
3. Low noise levels
4. Easy maintenance
5. Flexibility (so I can add or remove components easily, with qdcs)
6. Reliability (my current pumps seems invincible compared to the ones I had in aios before

Edit: did some more searching and found that I could thread the inside of the pump inlet and outlets allowing me to connect it to my loop and extra Reservoir without the need for a Pump top.
 
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It's all good. I'll figure it out eventually. The only reason I'm putting myself through all this is to get

1. Better cooling
1. Better overclocking
3. Low noise levels
4. Easy maintenance
5. Flexibility (so I can add or remove components easily, with qdcs)
6. Reliability (my current pumps seems invincible compared to the ones I had in aios before

Edit: did some more searching and found that I could thread the inside of the pump inlet and outlets allowing me to connect it to my loop and extra Reservoir without the need for a Pump top.
Well pump and reservoir are only a small part of trying to achieve the above.
Also you would need
1. properly plumbed
2. good CPU block
3. good rad
4. good rad fans

As for reliability - good quality parts and the less stuff there is the less stuff to break and/or maintain.

I would say the 2 most important things (for 1-3) would be CPU block and Rad/fans

Edit - just watched the video - I was trying to figure out wth a dual bay pump was..........."XSPC Dual 5.25 Bay Reservoir Pump Combo D5 Vario"........AHHH A pump and reservoir with physical dimensions to fit within a dual 5.25" bay

Hmmm so if your rad is above it my question is can you bleed off enough air without it spitting out coolant? I guess have enough hose to pull it out of the case and above the rad to bleed off air then put it back in 5.25" drive bays??
 
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Well pump and reservoir are only a small part of trying to achieve the above.
Also you would need
1. properly plumbed
2. good CPU block
3. good rad
4. good rad fans

As for reliability - good quality parts and the less stuff there is the less stuff to break and/or maintain.

I would say the 2 most important things (for 1-3) would be CPU block and Rad/fans

Edit - just watched the video - I was trying to figure out wth a dual bay pump was..........."XSPC Dual 5.25 Bay Reservoir Pump Combo D5 Vario"........AHHH A pump and reservoir with physical dimensions to fit within a dual 5.25" bay

Hmmm so if your rad is above it my question is can you bleed off enough air without it spitting out coolant? I guess have enough hose to pull it out of the case and above the rad to bleed off air then put it back in 5.25" drive bays??
Yeah I understand what you mean. I don't have the dual bay pump combo setup into an actual drive bay...

Basically I had a vertical pump reservoir combo before, but the pump died. A friend of mine gave me his old XSPC d5 dual bay Reservoir combo. It's obviously from a long time ago but I needed a working pump. I ended up using his pump reservoir combo to keep my loop active.

Now that I'm upgrading a few components in my build, I figured it's time to upgrade/reconfigure some stuff. That XSPC dual bay Reservoir pump combo sitting at the bottom of my core p-90 case (because there's no proper way to mount it on it) looks ugly lol. So yeah I'll re think my setup. That's what I've been planning for these past couple days
 
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