The TetraPond Green Water Clarifier (Ultraviolet Water Clarifier) provides a permanent solution to the problem of algae which causes "green water" in your pond. Once installed it ensures that the pond stays clear of algae by preventing its re-development, thus creating crystal clear water while reducing the possibility of disease problems.

Green Water: The TetraPond Green Water, while providing a solution to the problem of green water, does not rectify the cause ie: High levels of nutrients in the water. These should be controlled through good planting, regular quality testing, and if necessary water changes. Allowing nutrients to build up to high levels can stimulate the growth of troublesome algae such as blanket weed.

How the TetraPond Green Water Clarifier Works: The clarifier works by exposing single celled algae to very high levels of ultra violet light as the pond water containing them is pumped through the unit. The ultra violet radiation not only kills the algae but causes them to clump together. These clumps can easily be removed by using a pond filter. For most ponds with normal levels of green water the algae clearing process should take about one week, however with thicker algal blooms this may take 2-3 weeks. The clarifier will kill the algae, but water clarity is dependent on the pond filter removing dead algae.

When installing the clarifier on a pond which already contains green water the clarifying process can be rapidly accelerated by carrying out regular water partial water changes and the use of TetraPond AquaRem.

Installing the TetraPond Green Water Clarifier: It is designed for use with standard garden pumps. It is important that all pumps have a pre-filter. For correct size refer to chart. The Pond Clarifier is not submergible and should be positioned where there is little likelihood of flooding the unit or falling in the pond. It can be mounted
on any surface including the lid of TetraPond Filter. When the UV Clarifier is mounted on top of your TetraPond filter you can use the enclosed clamps and screws. The unit should only be connected to a power supply receptacle protected by a Ground Fault Interrupter (GFCI).

Maintenance: Where algae densities in the pond are very high the unit should be cleaned regularly (every 3-5 days). Until the problem is under control. Carefully dismantle the unit by first unscrewing the unity cap and removing the bulb. The quartz tube may be loosened by using a small coin or screwdriver and can then be carefully removed. Clean with a soft cloth to avoid scratching the quartz. When reassembling ensure that the sealing rings are properly seated (lubricate with a small amount of petroleum jelly if necessary.)

Replace the bulb every 8000 hours (about once a year.) All UV bulbs lose the effectiveness over time.

Parts available for this product

Elmer’s Aquarium Pet Center 4005 Wm Penn Hwy. Monroeville, Pa. 15146 (412) 372-6535
Daily 10-9:30 Sunday 12:00- 5:00 Pet Specialist Since 1969   Last Revision-06/13/07

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