Plumbing for externals

[VdubbChubb]

I just thought about this at work today.

The one on the left is what is running now the one on the right is what it had do u think that that difference in inner diameter would cause the pump to run hotter than normal?

 

[installman]

I doubt it would make a difference.

 

[rogergolf66]

No change in heat just flow

 

[luisagos]

Depending on the pump curve, running a open end without restriction will cause the pump to overheat.
Its backwards what some people think.

If you have a power meter (watts), put a valve on the discharge side (never put a valve on the suction side, fast way to burn up the pump).

Close the valve till you see a drop in watts, thats how you know your within the pump curve. You want to run the pump on the left side of the curve.
Lower watts means your in the ideal range for that pump.
Less heat, and a pump that will last longer.

All pumps are different and your plumbing will also dictate where the pump curve is at. This only works if your pump is oversized.

 

[rogergolf66]

Depending on the pump curve, running a open end without restriction will cause the pump to overheat.
Its backwards what some people think.

If you have a power meter (watts), put a valve on the discharge side (never put a valve on the suction side, fast way to burn up the pump).

Close the valve till you see a drop in watts, thats how you know your within the pump curve. You want to run the pump on the left side of the curve.
Lower watts means your in the ideal range for that pump.
Less heat, and a pump that will last longer.

All pumps are different and your plumbing will also dictate where the pump curve is at. This only works if your pump is oversized.

Yes it is true but I don't believe with the pump u have u will get enough change in heat. U still want a valve on the inlet side but just for maint. always leave it open when pump is running

 

[VdubbChubb]

I'm sure you guys are tired of hearing about my pump issue lolol but I installed a small fan pointing at my pump and my tank tank has dropped 3 degrees from 86-83 with room temp of 79. So I'm hoping tomorrow we are getting the window unit installed to keep the room at a constant 72-74 the tank will run in low 80 high 70s. Fingers crossed!!!

 

[installman]

Just keep an eye on it then. Hope it works out for you.

 

[screamincamaro]

What kind of pump are you running?

I'm firm believer in having a quality pump for your return for a handful of reasons (reliability, heat soak, pressure, flow, efficiency..... the thing is running 24x7)

I used to have a blueilne pump...... it was a great pressure pump but it was not that efficient and had a lot of heat soak. It would raise the tank water 3-4 degrees so I ended up replacing it with a more efficient pump. I kept it but ended up using it on my RO water barrel instead.

Not all pumps are created equal. Either that or there is something wrong with your pump making it heat up that much and I would be more concerned around restricting it on the inlet than the outlet.

 

[rogergolf66]

The pump he is using is prone to running very hot. It's a version of velocity or sea life Inc quality pumps but run to hot. Trust me get a new pump use that one for a salt mixing station in the future.

 

[VdubbChubb]

I'm ok buying a new one I just don't want to end up in the same situation. Lmk what I should get or what u guys think are the best for your personal experience. Btw can't thank u guys enough for all the help

 

[rogergolf66]

Most all run cool if external but reef low blow hole maybe a good choice for that size tank

 

[screamincamaro]

Agree, you can't go wrong with any of the Reef Flow pumps (that's what I'm currently running also)