Previously Asked Questions

• by Jason on August 7, 2012, @10:24 AM

  Are these pumps considered pressure rated?

  Bulk Reef Supply Hey Jason,
  It all depends on where you draw the line. I would call these more of a standard internal pump though. The pumps are capable of reasonably high head pressure in the 10ft plus range but they wont get anywhere near some of the pumps like the higher pressure panworld pumps which can go 30-40ft head pressure or even much more depending on the pump.

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• by Jim on December 13, 2012, @10:24 PM

  What would the GPH be with a four foot head?

  Bulk Reef Supply Hey Jim,
  Good question. At 4ft of head pressure, with the Mag Drive 12 you are looking at right about 1100gph.

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• by jack on February 27, 2013, @8:28 AM

  head pressure is that the distance from the pump to the top of tank?
  also how do you clean the pre filter?
  
  
  tks

  Bulk Reef Supply Hey Jack,
  Head pressure is the total amount of resistance back on the pump. The biggest factor of this is going to be gravity and the vertical distance the pump needs to pump. This would be the distance from the top of the water level in the container you a pumping from, to the top of the water level in the container you are pumping too.
  
  Unless you have a particularly tall and sump with a high water level, measuring the distance from the top of the pump to the tank rim will get you right in the ballpark.

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