need your suggestion/expertise on my single loop pissing flow issue

[NapalmV5]

well i would like to thank you all for all your suggestions you guys have guided me and put me on the right track thats for sure and the systems running like a champ now

much appreciated

-----

heres my fully watercooled system.. saturday i removed the 3rd gtx580 in the hope of getting better flow but quite the opposite turned out.. i removed one of the 2 radiators and still low flow.. atm the flow is so bad its like the 1800gph pump is not even on

the inlet is at @ gpus and the outlet is @ raid controller

1800gph pump -> (35-38 foot tubing) -> gpus -> eheim 1250 pump -> cpu -> mobo chipsets -> mobo vrm -> ram -> raid controller -> (10 foot tubing) -> eheim 1250 pump -> (25-28 foot tubing) -> radiator -> reservoir

total tubing @ 90-95 feet

what you guys think? should i install another eheim 1250 between the ram and raid blocks and another eheim 1250 between the radiator and reservoir ?? will 2x more eheim 1250 help out at all?? or remove the current eheim 1250s and get 3x-4x eheim 1260 pumps instead or remove the eheim 1250s and the 1800ghp pump and just get a single quite beastly pump.. Q is.. is there such??

[Xel_NaGa]

I had this same problem not but last week....While this may sound like a pain... it solved all my issues. I removed one block at a time took about 30-ish mins. once I removed the troublesome block BOOM I instantly went from .5LMP to over 9LPM. My problem was my CPU block had some plastisizer and grit/gunk in it that was easily removed.

EDIT: Wait.... your current flow is near 1800GPH(30 GPM / 115LPM) ?!?!?!

Id be surprised if you could get some of those blocks to do 10GPM without them springing leaks from the pressure.

[SoulsCollective]

Sounds like clogged blocks or an air bubble trapped in there somewhere.

Pull it all apart and start again. Painful, but really the only way to do it.

[relttem]

over 70ft of tubing?..did I read that correctly?

[theseeker]

^ I was wondering the same.

[relttem]

I wonder if the pump has enough outlet pressure to get through all of that stuff..crunching some numbers out I get "no"..but, I had to assume some stuff..

[MagisD]

Another room placed rad ?

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[Sparky]

Honestly it sounds like you have waaaaaaaayyyy too much tubing. For such long distances you need a larger diameter tubing. Why such a long distance anyway?

[SNiiPE_DoGG]

You don't have enough pumping power for that system. Not only is your cooling block setup extraordinarily restrictive, but you have a crap ton of tubing in the mix as well.

each sharp 90 degree turn is ~ -1.5ft of pump head, with a rough aproximation you have at least 20 ft of head pressure eaten up on that single loop monstrosity that you've got just at the board, nevermind the tubing length.

Those Eheim pumps are pretty weak (only 6.6ft of head pressure!) what you need my friend is an industrial iwaki to get decent flow rates with this setup. Unfortunately this is just not feasible, you're going to start blowing your blocks and radiator.

you really need to:

A) cut down the length of tubing
B) split into multiple loops

I don't even know where to begin with it honestly. What kinda budget for alterations are we looking at?

[MagisD]

I think it's more tubing length then 90s, I have about 20 90s in mine and flows not bad.

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[dengyong]

heres my fully watercooled system.. saturday i removed the 3rd gtx580 in the hope of getting better flow but quite the opposite turned out.. i removed one of the 2 radiators and still low flow.. atm the flow is so bad its like the 1800gph pump is not even on

the inlet is at @ gpus and the outlet is @ raid controller

1800gph pump -> (35-38 foot tubing) -> gpus -> eheim 1250 pump -> cpu -> mobo chipsets -> mobo vrm -> ram -> raid controller -> (10 foot tubing) -> eheim 1250 pump -> (25-28 foot tubing) -> radiator -> reservoir

what you guys think? should i install another eheim 1250 between the ram and raid blocks and another eheim 1250 between the radiator and reservoir ?? will 2x more eheim 1250 help out at all?? or remove the current eheim 1250s and get 3x-4x eheim 1260 pumps instead or remove the eheim 1250s and the 1800ghp pump and just get a single quite beastly pump.. Q is.. is there such??

Why can't ya have the rads in the same room or out the window ? What's the temperature in Peru this time of year ?

[MadHacker]

myself i run my radbox in another room. (no fans in my PC so nice an silent) ( have 10 ft of hose connecting to it)
my system is quite as complex as yours however i can't see the flow being so low.

instead of ripping the system apart. start with dividing your system into 2 loops..
check the flow of the first loop,,, and then the second loop.
find the slower loop. then split that in 2.
it will be the fastest way to figure out in which block your loosing your flow...
unless you have to very restrictive blocks in each loop.
my 2 cents

[SoulsCollective]

Holy tubing Batman I totally missed the amount of tubing length specified (also, I'm really not that familiar with imperial measurements ). The above posters are completely right - your system is waaaay to restrictive.

[penguins]

those pumps are killing you. There is a reason we moved away from pond/hydroponics pumps, they are never used in a closed system and don't have the pressure.

get yourself some updated pumps and kill some of that tubing.
there is no reason you spend the high $$ for all those bp fittings and not get a decent pump : ).

that's like one of those 100,000 dollar fiberglass jobs to make a toyota look like a Ferrari. still goes like a toyota.

[NapalmV5]

I had this same problem not but last week....While this may sound like a pain... it solved all my issues. I removed one block at a time took about 30-ish mins. once I removed the troublesome block BOOM I instantly went from .5LMP to over 9LPM. My problem was my CPU block had some plastisizer and grit/gunk in it that was easily removed.

EDIT: Wait.... your current flow is near 1800GPH(30 GPM / 115LPM) ?!?!?!

Id be surprised if you could get some of those blocks to do 10GPM without them springing leaks from the pressure.

last time it was the cpu block it was just dripping

its a far cry from 1800gph with all the restrictions long 1/2 tubing lot of angles

no leak problem not yet anyways

[NapalmV5]

over 70ft of tubing?..did I read that correctly?

^ I was wondering the same.

its more than 70 ft.. total tubing: 90-95 ft (added to first post)

[NapalmV5]

Sounds like clogged blocks or an air bubble trapped in there somewhere.

Pull it all apart and start again. Painful, but really the only way to do it.

yes it behaves just like its clogged but its not.. had tons of air bubbles.. especially stagnating bubbles that just dont budge at all.. nasty!

[NapalmV5]

I wonder if the pump has enough outlet pressure to get through all of that stuff..crunching some numbers out I get "no"..but, I had to assume some stuff..

the pump can be fit with 1"/1" but its restricted to the 1/2" tubing

[NapalmV5]

Another room placed rad ?

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Honestly it sounds like you have waaaaaaaayyyy too much tubing. For such long distances you need a larger diameter tubing. Why such a long distance anyway?

the rads and pump are 2 rooms down.. now i moved all the pumps over there

its the reason why i went into water cooling after 7 years on air

no noise no fans no dust no rads all this crap away from the system.. system resides all alone in the living room nothing else

from the start i wanted to go with 1" tubing but its still restricted to 1/2" blocks/rads

this was critical.. i was forced to install the eheims in the living room but they gone now

[NapalmV5]

You don't have enough pumping power for that system. Not only is your cooling block setup extraordinarily restrictive, but you have a crap ton of tubing in the mix as well.

each sharp 90 degree turn is ~ -1.5ft of pump head, with a rough aproximation you have at least 20 ft of head pressure eaten up on that single loop monstrosity that you've got just at the board, nevermind the tubing length.

Those Eheim pumps are pretty weak (only 6.6ft of head pressure!) what you need my friend is an industrial iwaki to get decent flow rates with this setup. Unfortunately this is just not feasible, you're going to start blowing your blocks and radiator.

you really need to:

A) cut down the length of tubing
B) split into multiple loops

I don't even know where to begin with it honestly. What kinda budget for alterations are we looking at?

I think it's more tubing length then 90s, I have about 20 90s in mine and flows not bad.

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definitely not.. yeh these 1250s are weak i removed both and i separated the one rad i removed earlier into another loop with a 1250

ive cut down 4-5 feet

[NapalmV5]

Why can't ya have the rads in the same room or out the window ? What's the temperature in Peru this time of year ?

if rad/s in the same room that means dust/noise/fans hell no!

lol peru?! its probably still hot.. dude im right here in the northwest us

[NapalmV5]

myself i run my radbox in another room. (no fans in my PC so nice an silent) ( have 10 ft of hose connecting to it)
my system is quite as complex as yours however i can't see the flow being so low.

instead of ripping the system apart. start with dividing your system into 2 loops..
check the flow of the first loop,,, and then the second loop.
find the slower loop. then split that in 2.
it will be the fastest way to figure out in which block your loosing your flow...
unless you have to very restrictive blocks in each loop.
my 2 cents

yeh one of the rads and an eheim 1250 is now in a separate loop

all blocks are 1/2"

i have to get the reservoir higher and close the loop.. right now its on the floor same level as the rest of the system

[NapalmV5]

Holy tubing Batman I totally missed the amount of tubing length specified (also, I'm really not that familiar with imperial measurements ). The above posters are completely right - your system is waaaay to restrictive.

those pumps are killing you. There is a reason we moved away from pond/hydroponics pumps, they are never used in a closed system and don't have the pressure.

get yourself some updated pumps and kill some of that tubing.
there is no reason you spend the high $$ for all those bp fittings and not get a decent pump : ).

that's like one of those 100,000 dollar fiberglass jobs to make a toyota look like a Ferrari. still goes like a toyota.

ouch! i agree

tell me about it.. pulling my hair out restrictive/killing me

what pump would you guys recommend ?

i could go 35x2 ft 1" tubing and even though it gets restricted to the 1/2" blocks is it worth it? does it help ?

[NapalmV5]

what im going to do is separate the 2nd rad too.. might aswell

this one here that i got from frozencpu

http://www.frozencpu.com/products/12...?tl=g30c95s667

the other one is this one here: http://www.frozencpu.com/products/11...?tl=g30c95s667

2x eheim 1250 2x rads 2x separate loops

[m0r7if3r]

ouch! i agree

tell me about it.. pulling my hair out restrictive/killing me

what pump would you guys recommend ?

i could go 35x2 ft 1" tubing and even though it gets restricted to the 1/2" blocks is it worth it? does it help ?

You could run off an RD20 or RD30 and it'd handle your whole loop without blinking