I have a tan world 1900. I over bought on the gallons per hour return, and by that I mean, misounte can't keep up with the amount of flow it produces. To compensate I put in shut off valves to add a little resistance and slow down the return. My fear is that I may be causing a little more stress on the motor then is necessary. So to the subject, how hot do Extertal pumps get? This is the first time I've ever used an external blog, and I just wanted to make sure that I'm not screwing the pump up.
External return pumps. How hot are they supposed to get?
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seth the wine guy
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Warm=ok. Hot=not. If you wouldn't feel comfortable putting you cheek on it I think something is awry. Restricting the inlet will cause this more than restricting the outlet.
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thats a good way to put it.
can you put a bypass in the plumbing and dump some of it in the sump. yes it will increase the flow in the sump but allow you to valve back the flow in the tank. in other words its like drive your car at full speed but riding your brakes to keep you at 55mph. you can do it but the brakes and or motor and other items could wear early.
you can always add a reactor and put some carbon or something in it, it would allow you to flow some somewhere else and get something out of it as well.
you can always add a reactor and put some carbon or something in it, it would allow you to flow some somewhere else and get something out of it as well.
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Restricting your pump to a point does not produce more heat or strain the pump.
The pump does not know the difference of the ball valve or vertical lift. Many pumps will draw less wattage with added head pressure vs. no restriction and less wattage means less heat.
The car analogy doesn't work with electric motors they do not function the same as an internal combustion.
The pump does not know the difference of the ball valve or vertical lift. Many pumps will draw less wattage with added head pressure vs. no restriction and less wattage means less heat.
The car analogy doesn't work with electric motors they do not function the same as an internal combustion.
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I would mot have either if I had not had it bought to my attention .
The correct amount of restriction on the discharge side of the pump can actually increase the efficiency of the pump. Every pump has that sweet spot.
And external pumps run HOT. Some hotter than others. Iwaki reps say that you should be able to touch your hand to it for about 5 seconds. That would be pushing it for mine. As for touching a cheek to it? No way man.. Not on this one anyhow, but again, this pump is known to run HOT.
They do (well, this one does anyhow) generally have a thermal cut-off so if the pump gets too hot it will shut off.
They do (well, this one does anyhow) generally have a thermal cut-off so if the pump gets too hot it will shut off.
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Exactly. They draw more watts which usually(not always) means more heat and they do not have the water surrounding them to transfer the heat to. Most rely on a fan at the end to dissipate the heat.
Edit:
Yep the ones with the one trip ponies hurt the pocket book somtimes.
you can convert them from di to an empty container and put anything you want in them .
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