jmichaelh7
2500 Club Member
I have mine at 35% for UV purposes . Does anyone run 100% ever
What do you run your Cor pump at ?
- Thread starter jmichaelh7
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TexanCanuck
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- Dallas, TX
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That all depends on the type of overflow you are using, the size of your drain lines from your overflow, if you are using 1 return pump or 2, and if you're talking about a COR-15 or a COR-20.
In my case, I'm running a Herbie overflow with 1" hard piping and two COR-20 return pumps. Since my overflow and drain lines together can only process about 800 GPH before the emergency drain comes into play (at which point the overflow becomes too noisy for my tastes), and the fact that I am splitting the return across two pumps that are plumbed separately to two return nozzles, I have to dial back each COR-20 to about 400GPH each, which is approximately 50% of rated power. As it turns out, this is the perfect flowrate for a 25W UV sterilizer for treating algae and bacteria - so I've got a UV unit on the discharge of each pump.
However, if I were using a single COR-20 return pump, it would have to run at maximum speed (100% power) to give me the required flowrate through my sump. But at this flow rate I couldn't use the UV sterilizer.
If I used two COR-15s (instead of the 2 COR-20s), they too would have to run at 100% to provide the discharge head and flow required.
So at the end of the day, I think the answer to your question is the same as asking "how long is a piece of string"
In my case, I'm running a Herbie overflow with 1" hard piping and two COR-20 return pumps. Since my overflow and drain lines together can only process about 800 GPH before the emergency drain comes into play (at which point the overflow becomes too noisy for my tastes), and the fact that I am splitting the return across two pumps that are plumbed separately to two return nozzles, I have to dial back each COR-20 to about 400GPH each, which is approximately 50% of rated power. As it turns out, this is the perfect flowrate for a 25W UV sterilizer for treating algae and bacteria - so I've got a UV unit on the discharge of each pump.
However, if I were using a single COR-20 return pump, it would have to run at maximum speed (100% power) to give me the required flowrate through my sump. But at this flow rate I couldn't use the UV sterilizer.
If I used two COR-15s (instead of the 2 COR-20s), they too would have to run at 100% to provide the discharge head and flow required.
So at the end of the day, I think the answer to your question is the same as asking "how long is a piece of string"
