Best Buy Pondmaster 02910 Ultra Violet Light Pond Water Clarifier 10watt

Pondmaster 02910 Ultra Violet Light Pond Water Clarifier 10watt

Is algae making that pond water look a little green? This 10-watt clarifier uses ultraviolet light to kill algae and harmful bacteria for cleaner water and smoother pump operation. The light is submersible so it doesn't detract from the natural pond look, and, at the same time, its slim design tucks behind pond borders for concealed above-surface installation (with proper tubing).
The clarifier is designed to work in conjunction with pumps with up to 700 gallons per hour of output, and clarifies water in ponds holding up to 1,500 gallons. The cleansing, ultraviolet light is equipped with a 3/4-inch barbed intake and outlet for attaching flexible tubing. A vortex flow design increases water exposure time and the unit's slim diameter brings more of the water closer to the intense UV rays for optimal efficiency. An 18-foot power cord easily reaches nearby power sources. Soft, blue indicator lights show that the unit is working. Additionally, water can be pumped through the UV light and then into a biological filter (sold separately) where debris and dead algae can be trapped and decomposed.


Submersible 10 watt Ultraviolet (UV) Light Pond Water Clarifier for use with pumps up to 700 GPH, in ponds up to 1500 gallons. Kills suspended algae with UV light. Water can be pumped through the UV light and then into a biological filter (sold separately) where debris and dead algae can be trapped and decomposed. When installed correctly, UV lights are very effective at eliminating green water pond problems. This UV light has a 3/4 barbed intake and outlet for flexible tubing and is equipped with an 18 ft power cord. The soft blue halo light rings show that the unit is working. The vortex flow design increases the exposure time of the water with the ultraviolet light and the slim diameter brings more of the water closer to the intense UV rays making the process more efficient. These clarifiers can be installed submersed in the pond or outside the pond. UL listed."

Pondmaster 02910 Ultra Violet Light Pond Water Clarifier 10watt Details

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• Product Dimensions: 13 x 6 x 6 inches
• Shipping Weight: 4 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B00025YVGW
• Item model number: DNR02910
• Average Customer Review: 4.4 out of 5 stars  See all reviews (10 customer reviews)
• Amazon Best Sellers Rank: #50,729 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
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This is the 10 watt Supreme Pondmaster Submersible UV Clarifier, model 29101. When water is circulated through it, the water is exposed to ultraviolet light that is capable of killing both suspended algae and bacteria. I have used several of these units in both marine aquaria (outside the tank) and in my pond (in the water) and they have performed perfectly. The unit contains a tubular UV bulb protected by a slightly larger quartz sleeve. Danner says that the design causes the water to flow through the unit in a circular manner but I have never cut one open to see how that might be accomplished. Build quality is excellent and I have had no problems with leakage of water either into the interior quartz sleeve and UV tube or out onto the floor. It is important to remember that the quartz sleeve will gradually become partially occluded by deposits on the outside surface. For best results, you should disassemble the clarifier periodically (monthly is about right) and remove and clean the sleeve. Disassembly is quick and easy but be careful with both the sleeve and the tube when you do it. The clarifier works well but beware: Danner advertises that the 10-watt model will be adequate for ponds up to 1500 gallons. This is extremely optimistic. If you begin with a pond that is absolutely clean and algae free, the 10-watt model might keep it that way, if used in conjunction with a good filter. However, if you are installing the clarifier to deal with a pre-existing problem, you should probably not count on it working well for ponds over 500 gallons. My pond is 650 gallons and the 10-watt device is barely adequate. There is relatively little difference (about $30) in the cost of the 10-watt and 20-watt models and using more UV than you need doesn't harm anything and adds at most a few pennies to you electricity bill. If in doubt, go with the 20-watt model. Also, the specification calls for a 700gph pump (1800gph for the 20-watt model). Do not think that you can improve performance by using a larger pump. You probably won't hurt the device but the water will pass through it too quickly for the UV to kill the nasties. A pump that is too small just reduces the speed with which the entire volume of the pond passes through the clarifier. One last caution: DON'T LOOK DIRECTLY AT THE UV TUBE WHEN IT IS ILLUMINATED NO MATTER WHETHER IT IS INSIDE OR OUTSIDE OF THE QUARTZ SLEEVE. YOU CAN DAMAGE YOUR EYES IF YOU DO SO.

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