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UV Lights

A pond with clear water is an attractive feature in your garden, which brings many hours of enjoyment and relaxation. A green pond is unappealing to look at and is difficult to determine whether your fish are diseased or if they have damaged themselves. Algae also pose a threat to your fish as it starves them of essential oxygen they require.

How it works.

An U. V Sterilizer will maintain a clear pond throughout the year without the use of chemicals. The unit works by exposing the phototropic micro-organisms (free floating single celled algae) to a dose of U. V. radiation. This destroys and prevents the re growth of the phototropic micro-organisms.

Safe to use.

Ultra Zap U. V. units have no side effects on the inhabitants of your pond or environment. If algaecides are used, you have the risk of over-treatment and/or residual chemical build up in your pond. The inhabitants, fish and plants, of your pond are to some degree sensitive to algaecides. With the use of an Ultra Zap unit you stand no risk of this.

Choice of unit.

There are four units available, 8 Watt, 15 watt, 30 watt and 55 watt. The table below provides a guide to which U. V. unit your pond will require. The use of a quartz sleeve is often recommended with the use of U. V. units, but for the reduction of algae it is not necessary. Therefore the Ultra Zap Pond unit does not incorporate a quartz sleeve.

The Profesional range U.V.C units are used where more effective sterilization process is required and where bacteria free water is essential.The units are fitted with both a quartz glass sleeve and a stainless steel reflector.

SIZE	POND CAPACITY	MAX FLOW PER MINUTE
8 Watt	6 000 Litre	40 LT/M
15 Watt	12 000 Litre	60 LT/M
30 Watt	25 000 Litre	140 LT/M
55 Watt	45 000 Litre	300 LT/M

Easy to install.

The Ultra Zap U. V units are easily installed into your existing pipe work or into a new system. When using filters with gravity feed returns to the pond the U. V unit must be installed on the inlet to the filter as not to restrict the outlet flow, which can affect the efficiency of the filter. It is recommended to use a mechanical pre filter or strainer before the U.V. unit as to prevent the large dirt particles entering the U.V. unit, which will reduce the performance of the tube. When using a sand or disc filter, install U.V. unit after such units. Always install U.V units with the correct flow of water passing through the unit. Ball valves installed on the U.V. pipeline must be before the unit as to prevent pressure build up in the unit. Mount U.V units horizontally with the inlet and outlet facing upwards as this prevents air locks and the tube will always be totally surrounded by water, therefore the water will be exposed to the U.V rays for a longer period. Mounting horizontally also prevents faulty electrics. Install unit with unions on the inlet and outlet. Electric connections should be connected by a qualified electrician and must be wired through circuit breaker/earth leakage system. Protect the U.V unit from rain and irrigation systems in gardens.

Info Courtesy of Ultra Zap

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