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How Do They Work? A common way for home owners to keep their pond water clear is by the use of a UV clarifier. If you use a high quality biological filter that is capable of filtering your size pond and fish load you will not likely need a UV. If the filter is not capable of filtering your pond, you will have excess nutrients in the water and will likely have a green water algae problem. A UV clarifier works by passing the water through a tube next to a UV bulb. The high intensity light kills off the microscopic algae cells that form green water. Make no mistake, a UV will not control string algae since the string algae does not flow through the tube next the the light bulb.
You will notice some manufacturers call their units UV sterilizers. The only difference between a UV clarifier and a UV sterilizer is how fast the water flows through the tube. Algae cells are relatively easy to kill so you can pass the water (and the cells) through the tube at a faster rate and still achieve results. Many other microorganisms (bacteria, virus strains, etc.) are harder to kill so the water needs to pass through the tube slower to achieve a complete kill. The slower the water passes through, the smaller the pond size it can effectively control. Manufacturers who try to control algae call their units "clarifiers" and publish higher flow rates while those who sterilize the water of all living organisms use slower flow rates. A UV clarifier can be used as a sterilizer by simply slowing down the flow of water passing through it.
Always shut off a UV for 24 hours when adding bacteria to your pond. A UV does not discriminate what it is killing so any beneficial bacteria added to your pond would likely pass through the UV and be killed off. Bacteria typically adheres itself to something (filter material) within 24 hours and is then safe.
Aqua Ultraviolet UV's are guaranteed to rid ponds of green water!
2" inlet/outlets on all UV's for unrestricted plumbing!
Advantages of Aqua-UV:
Ultraviolet sterilization is a proven, dependable and effective method for controlling and eradicating algae spores, bacteria, and protozoa present in the water source. Ultraviolet alters or disrupts the DNA and RNA or target organisms. By properly implementing an Aqua Ultraviolet™ disinfection system in-line, the targeted organisms can be eradicated effectively without any harmful residuals.
The table below provides recommendations on particular models and how they can be used as either a sterlizer or clarifier. For chronic green water problems we'd suggest using the sterilizer rating.
To purchase the UV system, the best current pricing we've found as been on Amazon. You can view their selection through the link below.
NOTE: UV sterilizers pass the water by the bulb slower for a more complete kill. UV clarifier passes the water through faster and will still kill all algae cells but may not kill types of bacteria or virus in the water.
Aqua UV replacement bulbs, sleeves, and other parts are available upon request. Please contact us via email with information on the Aqua Ultraviolet UV system you have and we can suggest the appropriate parts and current pricing as well.