2 cheep pumps instead of buying one expensive one

[Pandora]

title says most of it. i want to buy 2 cheep pumps because it seems that all the nice ones that most people suggest cost 100-130$. and i am a cheep mofo. 

 

i was thinking of using 2 of these in parallel since i dont exactly trust their reliability or the pressure they can push.

 

http://www.ebay.com/itm/DC-12V-6W-PUMP-MOTOR-FOR-PC-WATER-COOLING-SYSTEM-WATER-COOLED-/221464801248?hash=item339054afe0:m:mRf-QefFM-1Ydu8a26UaUHw

[Jaybird]

thats not how it works. its not so much trusting their specs as much as you are trusting their life span/warranty. the higher priced ones will generally last longer than some cheapie. 

 

plus it looks like that pump is for a fountain and its fittings are not barbed or compression so you might get some leakage over time. 

[CydiaDash]

Woah, I'm no water cooling expert but those look cheaply made and dodgy af. Might wanna spend a bit more money on a pump or two.

[ZetZet]

that's four times as stupid with my calculations.

[MatthewEnderle]

the differential pressurization between the two pumps will cause serious stress and result in short term life and indefinite noise.

[Philz69]

I wouldnt even trust 5 of these in parralel! But you could always try, im curious as to why would you watercool if you're going to cheap out though

[Pandora]

any suggestions on pumps or pump res compos under 80$?

[Philz69]

any suggestions on pumps or pump res compos under 80$?

I would've suggested a DDC/D5, but its a bit over your budget!

 

[QueenDemetria]

title says most of it. i want to buy 2 cheep pumps because it seems that all the nice ones that most people suggest cost 100-130$. and i am a cheep mofo. 

 

i was thinking of using 2 of these in parallel since i dont exactly trust their reliability or the pressure they can push.

 

http://www.ebay.com/itm/DC-12V-6W-PUMP-MOTOR-FOR-PC-WATER-COOLING-SYSTEM-WATER-COOLED-/221464801248?hash=item339054afe0:m:mRf-QefFM-1Ydu8a26UaUHw

Don't but that pump, unless if you are just watercooling "meh" hardware for the lolz. If you just have a simple setup(CPU, single GPU) then just use a DC12 or DDC, but if you have lots of waterblocks(CPU, multiway GPU, RAM cooler, VRM blocks, etc). then you will want something like a D5. Performance PC's has an $90 DDC, and their DC12's are $45-60ish depending on the model.

[Grrizz]

any suggestions on pumps or pump res compos under 80$?

Swiftech generally have good pumps at a good price, I'm pretty sure their MCP-655s and MCP35Xs are usually under $80, both are excellent pumps. (Edit: http://www.sidewindercomputers.com/pumps.html or http://www.performance-pcs.com/pumps/shopby/brand--swiftech/ )

Whatever you do don't buy that pump you linked for PC watercooling though

[Pandora]

Swiftech generally have good pumps at a good price, I'm pretty sure their MCP-655s and MCP35Xs are usually under $80, both are excellent pumps. (Edit: http://www.sidewindercomputers.com/pumps.html or http://www.performance-pcs.com/pumps/shopby/brand--swiftech/ )

Whatever you do don't buy that pump you linked for PC watercooling though

this pump?

http://www.sidewindercomputers.com/swiftechmcp355.html

[vanished]

title says most of it. i want to buy 2 cheep pumps because it seems that all the nice ones that most people suggest cost 100-130$. and i am a cheep mofo. 

 

i was thinking of using 2 of these in parallel since i dont exactly trust their reliability or the pressure they can push.

 

http://www.ebay.com/itm/DC-12V-6W-PUMP-MOTOR-FOR-PC-WATER-COOLING-SYSTEM-WATER-COOLED-/221464801248?hash=item339054afe0:m:mRf-QefFM-1Ydu8a26UaUHw

 

The picture sure makes the pressure look ok, but I want to make sure something it clear.  Running pumps in parallel will do nothing for the pressure; it will only increase the volume that can be moved.  Running them in series would increase the pressure, but I wouldn't advise either with that pump

[Philz69]

The picture sure makes the pressure look ok, but I want to make sure something it clear.  Running pumps in parallel will do nothing for the pressure; it will only increase the volume that can be moved.  Running them in series would increase the pressure, but I wouldn't advise either with that pump

He wanted to run them in parrelel for redundancy!

[vanished]

He wanted to run them in parrelel for redundancy!

I figured, but the comment about "i dont exactly trust their reliability or the pressure they can push", and my background made me have to bring this up

[Grrizz]

this pump?

http://www.sidewindercomputers.com/swiftechmcp355.html

That's a good one but if you can spare the extra money I would go with the 35X because it has RPM control which is nice for noise reduction however on top of the extra $10 base price you also have to buy fittings. The MCP655 is probably the best value for money, its larger than the MCP35X but also has speed control that when turned down is incredibly quiet (and in normal loops you can turn it down to ~2 and still have plenty of flow), it also has barbs built into the housing so if you have the room for it it's a great option.

Also note that when a pump dies (very rare for a quality one) due to the mass of the waterblock and the water in it the chips tend to slowly heat up giving the computer plenty of time for the auto shutdown to kick in before damage occurs.

[Pandora]

The picture sure makes the pressure look ok, but I want to make sure something it clear.  Running pumps in parallel will do nothing for the pressure; it will only increase the volume that can be moved.  Running them in series would increase the pressure, but I wouldn't advise either with that pump

 

agreed

He wanted to run them in parrelel for redundancy!

agreed.

 

also i have been conviced to not use this pump

[Pandora]

That's a good one but if you can spare the extra money I would go with the 35X because it has RPM control which is nice for noise reduction however on top of the extra $10 base price you also have to buy fittings. The MCP655 is probably the best value for money, its larger than the MCP35X but has speed control that when turned down is incredibly quiet (and in normal loops you can turn it down to ~2 and still have plenty of flow), it also has barbs built into the housing so if you have the room for it its a great option.

the computer is quite close to me. will this pump be noticeably quite loud?

[Grrizz]

the computer is quite close to me. will this pump be noticeably quite loud?

Over the years I've found the concept of loud is a subjective thing but IMO yes it is loud, the MCP655 is what I would recommend for quiet operation but the MCP35X when run at a low speed is pretty quiet, the MCP355 puts out a bit of a hum which you could possibly dampen with some effort put into its mount and it is a low pitched hum so its not the annoying sound you often get from a loud fan but I would recommend the 35X or 655 over it personally.