Siphon overflow unit quietly transports water to sump filters in undrilled aquariums
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New slotted grates enhance aquarium water level adjustments
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Black top helps aquarium aesthetics by reducing unsightly algae growth
Employ efficient sump-style filters without expensive aquarium modifications. CPR Continuous Siphon Overflow offers a simple and effective alternative to drilling aquariums. Innovative overflow unit quietly transports aquarium water at flow rates much greater than units utilizing tubes. Slotted grates on the overflow allow a greater range of aquarium water level adjustments. Black top reduces unsightly algae growth that affects aquarium aesthetics.
CPR Continuous Siphon Overflow can be hard plumbed with standard PVC pipe. (Does not include lid.) Use of an
Aqua Lifter Pump (sold separately) is necessary to prevent trapped air from the siphon. Combine with Aqua Lifter Filter, a suction-style floss debris filter, to maximize efficiency and use of the Aqua Lifter Pump.
Please click on "More Information" for tips on selecting the right overflow unit.
How to select the right Continuous Siphon Overflow
If you need help selecting the right CPR CS Overflow for your fish tank, follow these easy steps:
If the tank is already set-up and you have not purchased your return pump:
Measure the distance available between the tank and the wall (refer to the chart below).
Determine the amount of flow you want to achieve through your sump and filter (see below).
Choose a pump that will provide the desired amount of flow. Be sure to account for the resistance that the pump is working against head pressure. Use the head pressure loss chart provided on the pump packaging to estimate the resulting flow rate.
Estimating head pressure: Head pressure is measured in feet, so for a rough estimate of head pressure, start by measuring the vertical height from your pump to the top rim of your aquarium (or to the place where the return outlet is located). Then, for each 90 degree turn, add 1-2 more feet to your total. Do not forget to count the turns required to get the water back into the tank. Any reduction in the return line will also add to the total head pressure.
Once you have selected your pump, choose the corresponding CS Overflow unit that best matches the flow rate you have selected. Be sure not to choose a CS Overflow that has a flow rate that is less than the flow rate of your pump (once head pressure is accounted for).
If you have already purchased your return pump:
Determine the flow rate of the pump that you already have. Do not forget to account for head pressure (see above).
Choose the corresponding CS Overflow unit for the flow rate that you will be running. Be sure not to choose a CS Overflow that has a flow rate that is less than the flow rate of your pump (once head pressure is accounted for).
Spanning the most basic to the most advanced applications, a seemingly mundane piece of equipment, a sump, can provide numerous benefits, most important of which is improved water conditions.
Which aquarium filter is right for you? Today's aquarium fillters include undergravel filters, power filters, canister filters, wet/dry filters, and internal filters. Read more to make the smart aquarium filter choice.
Unlike natural aquatic systems, toxic compounds accumulate quickly in an enclosed aquarium system. Without a natural means to efficiently remove these toxic compounds or wastes, conventional aquariums are dependent upon filtration devices.
There are three basic types of aquarium filter media and each performs a different job to help keep a clean and healthy aquarium environment. This article gives a basic overview of the three main types of filter media.
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 "CPR Continuous Siphon Overflow")
Employ efficient sump-style filters without expensive aquarium modifications. CPR Continuous Siphon Overflow offers a simple and effective alternative to drilling aquariums. Innovative overflow unit quietly transports aquarium water at flow rates much greater than units utilizing tubes. Slotted grates on the overflow allow a greater range of aquarium water level adjustments. Black top reduces unsightly algae growth that affects aquarium aesthetics.
