2.2.3 Protein Skimmer Considerations
Description
This article is from the ReefKeepers FAQ, by several authors (see the Credits section).
2.2.3 Protein Skimmer Considerations
Below are some pros and cons of venturi vs. CC skimmers. Some
people will debate some of the statements.
Venturi skimmers, due to the large water pump needed, have a
higher initial purchase price than CC units for the same amount of
skimming.
The operational cost of a venturi unit is basically just the
electricity bill. A CC unit must sum in electricity consumption
for the water pump and air pump (usually small) plus air stone and
diaphragm replacement. Which one is more cost effective for you
depends upon which equipment you had to buy to run the skimmer
properly, your electricity rate and how often air stones need to
be replaced. Most people find CC skimmers less expensive to both
purchase and operate for the same amount of skimming.
Venturi skimmers are less cumbersome in appearance and in
operation. They are usually smaller and quieter. They are on the
* whole more hassle free. The powerful pump required for venturi
* skimmers may, however, add considerable heat to the water.
* One general note on water pumps: The amount of heat added to
* the water varies by brand, design, usage, and placement. Basically,
* the more efficient the pump (gallons delivered at a given pressure
* for a given power usage), the cooler it will run. Restricting
* the output of the pump will generally increase the water temperature.
* (Never restrict the intake of a centrifigal pump!) Obviously, an
* air cooled pump will increase your tank temperature less than a
* submersible (and therefore tank water cooled) pump will.
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