water circulation

gizo · 07-03-2001, 10:16 AM

can someone advise me on how to start the circulation of water in a closed resevior water cooling system? i am having a tough time getting the water to circulate.

is 150ghp pump really enough to get water moving?

ck42 · 07-03-2001, 10:27 AM

Well...first off, based on my own experiences, get ALL the air out of the sytem first...or as much as you possibly can.

The reason I say this is that air pockets in the system are compressable. The pump may be applying pressure to the water but if the water is hitting an air pocket, the air pocket will just act like a spring. The increased back pressure produced may then be MORE than the pump is capable of overcoming. So the pump will just sit there pumping but water will NOT actually be flowing.

I saw this happen in my system using a high pressure 500GPH pump when it was set on VERY low flow rate settings (my pump has a variable flow rate control knob).

Secondly, the 150GPH pump is more than likely going to be knocked down to some rediculously low flow rate when it's all said and done. Whether the LOW flow rates actually harm cooling performance significantly is a hot topic that is still vigorously debated and thus far inconclusive due to lack of formal testing.

It would be my *recommendation* to aquire a pump with a little more 'ooomph'.

I suspect your problem with no flow is directly related to either one or both of these two issues I mention. Tho I could be missing something...wouldn't be the first time.

Good luck.

gizo · 07-03-2001, 11:19 AM

thanx for the response ck42. one of the main problem i'm having is filling the system with water.

any step by step instructions..

yeah, i sound dumb, but i've never done this before..

ck42 · 07-03-2001, 03:29 PM

Well believe it or not, but I just found out how difficult it can be to fill a closed loop system just a couple days ago.

Trying pour water into a system thru something like a T, the water being poured in is hitting all that air in the system and takes FOREVER to trickle in.

What I've done for this, and draining issues, is to place another T at the oppose end of the loop (the loop being the course that the water takes on its trip around the hoses)

At this other T, I have a tube that goes into an empty container. This allows all that compressing air to escape which therefore allows the incoming water to enter the system much easier....and faster.

So, try a T at each end of the loop. One for filling and the other to allow the air to escape. The other T comes in handy for draining the system as well. Just blow into one T and the water in the system comes flowing out of the other T. Otherwise, draining can be a huge problem.

Another possible route is to use a resevoir with a fill hole. Place the resevoir just before the pump intake. Turn on the pump and start pouring water into the resevoir. The pump will continue to drain the resevoir so you'd have to keep filling it until the system reached a point where the resevoir had enough water on its own to feed the pump. Then just put the cap back on the resevoir.

gizo · 07-03-2001, 04:59 PM

alright, that helps a lot!!! i think i know what to do now..

thanx ck42

iceheart · 07-03-2001, 05:35 PM

Could you draw a little diagram for that ck? Sounds like a good idea.

07-03-2001, 10:16 AM	#1
gizo Cooling Neophyte Join Date: Jun 2001 Posts: 38	water circulation can someone advise me on how to start the circulation of water in a closed resevior water cooling system? i am having a tough time getting the water to circulate. is 150ghp pump really enough to get water moving?

07-03-2001, 05:35 PM	#6
iceheart Cooling Savant Join Date: Mar 2001 Location: Yonder Posts: 318	Could you draw a little diagram for that ck? Sounds like a good idea. __________________ "If the majority is smarter than you, does that make everyone else a geek, or does it make you retarded?" - pHaestus

07-03-2001, 10:27 AM	#2
ck42 Cooling Savant Join Date: Dec 2000 Location: Atlanta Posts: 154	Well...first off, based on my own experiences, get ALL the air out of the sytem first...or as much as you possibly can. The reason I say this is that air pockets in the system are compressable. The pump may be applying pressure to the water but if the water is hitting an air pocket, the air pocket will just act like a spring. The increased back pressure produced may then be MORE than the pump is capable of overcoming. So the pump will just sit there pumping but water will NOT actually be flowing. I saw this happen in my system using a high pressure 500GPH pump when it was set on VERY low flow rate settings (my pump has a variable flow rate control knob). Secondly, the 150GPH pump is more than likely going to be knocked down to some rediculously low flow rate when it's all said and done. Whether the LOW flow rates actually harm cooling performance significantly is a hot topic that is still vigorously debated and thus far inconclusive due to lack of formal testing. It would be my recommendation to aquire a pump with a little more 'ooomph'. I suspect your problem with no flow is directly related to either one or both of these two issues I mention. Tho I could be missing something...wouldn't be the first time. Good luck.

07-03-2001, 11:19 AM	#3
gizo Cooling Neophyte Join Date: Jun 2001 Posts: 38	thanx for the response ck42. one of the main problem i'm having is filling the system with water. any step by step instructions.. yeah, i sound dumb, but i've never done this before..

07-03-2001, 03:29 PM	#4
ck42 Cooling Savant Join Date: Dec 2000 Location: Atlanta Posts: 154	Well believe it or not, but I just found out how difficult it can be to fill a closed loop system just a couple days ago. Trying pour water into a system thru something like a T, the water being poured in is hitting all that air in the system and takes FOREVER to trickle in. What I've done for this, and draining issues, is to place another T at the oppose end of the loop (the loop being the course that the water takes on its trip around the hoses) At this other T, I have a tube that goes into an empty container. This allows all that compressing air to escape which therefore allows the incoming water to enter the system much easier....and faster. So, try a T at each end of the loop. One for filling and the other to allow the air to escape. The other T comes in handy for draining the system as well. Just blow into one T and the water in the system comes flowing out of the other T. Otherwise, draining can be a huge problem. Another possible route is to use a resevoir with a fill hole. Place the resevoir just before the pump intake. Turn on the pump and start pouring water into the resevoir. The pump will continue to drain the resevoir so you'd have to keep filling it until the system reached a point where the resevoir had enough water on its own to feed the pump. Then just put the cap back on the resevoir.

07-03-2001, 04:59 PM	#5
gizo Cooling Neophyte Join Date: Jun 2001 Posts: 38	alright, that helps a lot!!! i think i know what to do now.. thanx ck42

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