ULTRA VIOLET CLARIFICATION

Ultra-violet light will only clear green water when used in conjunction with a filtration system. UV light on its own will not clear the pond.

Fit a commercial encased Ultra Violet (UV) tube into an existing filter system before the main filter. Tubes must be the correct wattage for the amount of pond water being treated; they require a 240volt power supply and it is recommended that tubes are replaced annually.

U.V. not only kills algae but also pathogens and parasites. Fish become used to this protection and, in time, are reported to lose their natural immunity.

You must ensure that water does not pass through the UV too fast for it to have any effect, you may have to introduce a bypass if the filter serves a waterfall.

If treating a pond with chemicals switch off the UV during the treatment, as UV can break down some chemical action.

WARNING:

NEVER VIEW AN EXPOSED ULTRA VIOLET TUBE WITH THE NAKED EYE, when powered up and alight, it will damage the retina and can cause blindness.

© FBAS 2004 RCM/RDE                                    Pond Care Sheet 4 3/3

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