Please help-pulling hair out

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Ok I think im going nuts or I have done something wrong here.

Acording to my Aquaero pro 6 and the connected aquacomputer high flow usb Flow meter, i am only getting 151-lph. before adding the new pump into the loop i was getting 137-lph. becuase i was told on here my flow was to slow i (I should aim for 1 gal per hour or something)drained my loop(thank god i added a drainloop), and added another d5 varior pump(now making 2) while i was at it i also swapped a 90 fitting with a 45 fitting so it was a smoother run. and also shortened the pipe. i double checked to make sure there was no kinks nothing being crimped. as far as i could see.

The reason for the loop order was to try and make a cascading loop.(so if i needed to empty the loop it would be really easey,a nd it is very easy to empty.

new loop order:

480 rad-out>Mobo-in>mobo-out>Cpu-in>Cpu-out>d5/pump-in>d5/pump-out>Pump/res combo-in>Pump/res combo-out>360 rad-in>360 rad-out>flow meter-in>flow meter-out>480 rad-in.

When in aquasuite 2014, i click on the mps demo, set it to lire per hour (via aqua suite 2014 settings)i get the below readings in the circle.

litre_zps55db8979.jpg


Now when i change from litres per hour to uk gallons per hour. i get the below readings in the circle.

gsllons_zpsf8393494.jpg


Does anyone know if my flow meter needs to be calibrated i cannot find anything on the one i have that says it needs to be. could it be faulty ?

Both the d5 and the d5 pump res combo are both set to there highest setting. so either the flow meter is wrong or i have done something wrong ? i am completely baffled as to what is going on here. i do know that hardware labs rads are the most restrictive. but if the flow meter is correct surely my flow rate should be a lot more, and especially with 2 of them running, and i should be able turn the pumps speed down ?.

Please help it is now driving me nuts considering i paid a great deal of money on this water cooling set up, and i want to buy a new graphics card and water cool that, and the way it is atm(if the readings are correct, adding a water cooled graphics card will impede the flow even more as it stands.

Thank you for reading
 
It's the D5's my friend, I have a flow meter on mine and and a single 18w Laing DDC was pushing 0.8/0.9 gallons per minute according to my Aquaero 5 XT.

Then when I changed the Laing DDC for a Laing D5 thinking I would get more flow rate I actually didn't! The D5 only manages 0.5/0.6 gallons per minute so it's a lot less powerful.

My XSPC twin Laing DDC pump top should be here today so I can run a pair of 18w Laing DDC's in series to see what kind of flow rate I get then.

My loop has only taken around 60-70% of the fluid that it should have so I need the extra pumping power to force the fluid in at such a rate that it forces the air inside the radiators out and at the moment that single Laing D5 just doesn't have the guts.

What was the flow rate on your single Laing D5 on your sensor? Would be interesting as your loop is more restrictive then mine.
 
Well the math on the software is accurate, I guess the only way to really see would be to run a d5 with just the flow meter and see what that gives out to be.

However many do mention that the DDC is better in high restrictive loops due to more pressure. Personally I havent Wc in many years and have never used a D5 (am planning to soon however...) but the DDC had always been gd in restrictive situations.

p.s. I beleive you mean 1 GPM and to my knowledge this was always based on US gallons so 3.75ish Lpm, then again a Brttish gallon per minutes is just more flow cant go bad with that :D
 
Sorry to hear that DV, I hope it's not a case of the flow meter being borked as that doesn't bode well for mine!

I take it the flow reading does change slightly and isn't just constantly reading 151 l/h in your case?
 
It's the D5's my friend, I have a flow meter on mine and and a single 18w Laing DDC was pushing 0.8/0.9 gallons per minute according to my Aquaero 5 XT.

Then when I changed the Laing DDC for a Laing D5 thinking I would get more flow rate I actually didn't! The D5 only manages 0.5/0.6 gallons per minute so it's a lot less powerful.

My XSPC twin Laing DDC pump top should be here today so I can run a pair of 18w Laing DDC's in series to see what kind of flow rate I get then.

My loop has only taken around 60-70% of the fluid that it should have so I need the extra pumping power to force the fluid in at such a rate that it forces the air inside the radiators out and at the moment that single Laing D5 just doesn't have the guts.

What was the flow rate on your single Laing D5 on your sensor? Would be interesting as your loop is more restrictive then mine.

It has finally settled tot the same as it was with a single D5 ie 139 L/h. wich is quite disappointing tbh. the bad thing is I cannot afford to now replace the d5s to ddcs. im gutted tbh. and I really wish I hadn't of bought hardwarelabs rads now and wished I bought the ek or xspc ones now.
 
try putting the single pump after the pump res combo - reservoirs cause a big pressure drop so having the pump before and after the res could be effectively negating the pressure increase from the additional pump

a D5 pump has a head of about 3.7m so I would be very surprised if adding a second for 7.4m had no improvement on flow rate

what motherboard block and what cpu block are you running?
mobo blocks can be very restrictive, you could try running it in parallel with something, similarly the rads could possibly be run parallel
 
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In both screenshots the signal speed is 0. Not likely the case since its not plugged in to your meter but... im honestly guessing you've either got the signal down or not even set it yet.

Since you're running vario style pumps you need to go to the bottom of them and change it from what its likely on 1-2 to more like 3-5.

The only thing I can think of otherwise is incorrectly installed O-rings and the pump head is getting hit and slowing down in the pump housing.
 
This was the first question that sprung to my mind. This whole perfect flow rate business smacks of OCD.

Yup - changing my D5 Vario from setting 1 to setting 5 only knocks 2c off my peak temps.
 
try putting the single pump after the pump res combo - reservoirs cause a big pressure drop so having the pump before and after the res could be effectively negating the pressure increase from the additional pump

a D5 pump has a head of about 3.7m so I would be very surprised if adding a second for 7.4m had no improvement on flow rate

what motherboard block and what cpu block are you running?
mobo blocks can be very restrictive, you could try running it in parallel with something, similarly the rads could possibly be run parallel

The mobo block is the one that came with the mobo. cross chiller I think its called. mobo is as in my sig. the cpu block is the supremacy evo new one that just came out.
 
The mobo block is the one that came with the mobo. cross chiller I think its called. mobo is as in my sig. the cpu block is the supremacy evo new one that just came out.

If you work out your pumping pressure you're right on the limit!

http://martinsliquidlab.org/pump-planning-guide/

The pressure drop from the HW Labs radiators is over double that of rads of the same size!
 
In both screenshots the signal speed is 0. Not likely the case since its not plugged in to your meter but... im honestly guessing you've either got the signal down or not even set it yet.

Since you're running vario style pumps you need to go to the bottom of them and change it from what its likely on 1-2 to more like 3-5.

The only thing I can think of otherwise is incorrectly installed O-rings and the pump head is getting hit and slowing down in the pump housing.

The both pumps are set to 5.

The meter is showing 0 because the pump tachi signal are connected tot he motherboard. I have checked in the bios to make sure they are indeed working and are both running perfect.
Orings was set correctly also. I triple checked.
 
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