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You are here: Home > Pond Shop > UV Clarifiers > 20 Watt PondMaster UV Clarifier



20 Watt PondMaster UV Clarifier



Ultraviolet clarifiers eliminate green water.














  • To Clear Green Water (Clarifier) for ponds up to 3000 gallons used at flow rates up to 1800 GPH.
  • To kill many bacteria (Sterilizer) for ponds up to 1000 gallons used at flow rates up to 700 GPH.
  • Can be used submerged (recommended) or outside the pond.
  • Glowing Halo Ring visible from any angle shows it's working.
  • 9000 hour long life for lamp.
  • 18' grounded power cord.
  • 18" long
  • 3" diameter
  • Manufacturer's limited 1 year warranty.
  • 1" barbed inlet/outlet.


20 Watt PondMaster UV Clarifier

~Price $250.00 20 Watt Clarifier for ponds up to 3,000 gallons






UV Clarifier Details


Care and Operating Instructions for Pondmaster UV Clarifiers

Ultraviolet light is a wavelength of light which inhibits algae from reproducing by damaging its DNA. It also kills parasites in the water. UV light does not harm string algae which clings to the sides of ponds and therefore does not travel through the filter and UV rays. Barley wheat is a natural solution to that menace.

The quartz sleeve is not installed and is located in a separate box inside the main box. To install the sleeve, insert the round end into the main body until the rubber ring is all the way down into the main body. A flange will prevent the ring from going any further. It will rest against the main body. To remove the sleeve for cleaning, take a kitchen knife or thin screw driver and pry between the rubber flange and main body.(See photo No. 1)















The UV lamp is not installed and is located in a separate box inside the main box. To install the lamp, unscrew the transformer from the main body. Align the center slot and pins with the mating connector that is inside the transformer.

Push the lamp down firmly. Slide the lamp and transformer into the quartz sleeve and screw the transformer onto the main body. Do not over-tighten the transformer when screwing it to the main body. Lightly hand tighten it.(See Photo Nos. 2, 3, & 4).


Always turn off the power before handling or servicing the unit.

Never look at the lamp rays.

Please note the Halo rings transmit visible light only, which is safe to look at. This indicates the unit is working. Remember the lamp will produce visible light long after it has stopped producing effective UV light.


Warning:

This unit is for seasonal use only. It should not be used in freezing conditions because the quartz tube will crack, exposing live electrical current to the water. If the unit is dropped do not use it. Unplug it first and inspect the quartz sleeve for breakage or small cracks.

Electrical Precautions


Always use a properly grounded outlet. Do not immerse plug in water. Do Not Reach Into Water To Remove Plug. Turn Off Circuit First.A "drip loop" should be provided. The "drip loop" is a loop in the cord below the level of the receptacle or plug that prevents water from traveling along the cord.

The national Electric Code requires that a ground fault circuit interrupter (CGFCI) be installed in the branch circuit supplying fountain or pond equipment. Your dealer can supply GFCI units. Never remove ground pin from plug.

WARNING: for your protection always unplug the unit from its power source before installing or servicing. Should the halo rings indicate the unit is not working do not reach, remove or disassemble before you disconnect power.


General Information


For best results, the total amount of water in the pond should pass through the Ultraviolet light every 2.5 to 3 hours. Pumping water too fast will shorten the ‘dwell time’ - the time that the water in the unit is exposed to the ultraviolet rays.

The Pondmaster Ultraviolet Clarifier/Sterilizer is the only submersible unit on the market. It can also be used outside the pond when connected with tubing.

The lamp has a life of 9,000 hours, which means if you use the light continuously for 6 months per year, in most regions of the country, it will last two years. The unit should remain on 24 hours a day throughout the season.

Regardless what the manufacturer says, for the best possible performance, we recommend that the lamp be replaced every 6 months (or at the beginning of each pond season) because it slowly degrades.

Remember the lamp will produce visible light long after it has stopped producing the UV wavelength. The quartz sleeve should be cleaned periodically due to dirt or lime scale build-up since this will block the UV light and reduce efficiency. Clean the quartz tube with vinegar and a scrub pad. It is not a bad idea to replace the tube when you replace the bulb. It helps to lubricate the black gasket with silicone grease when reinstalling the quartz sleeve.



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E.G. Danner Mfg. Inc. will repair or replace any unit found to be defective within one year of original purchase. Cutting or altering cord voids any warranty consideration. For warranty repair return only the part that is defective to our factory.

Information provided by Danner Mfg., Inc. Maker of Pondmaster UV Clarifier/ Sterilizers


What is the difference between an ultraviolet sterilizer and an ultraviolet clarifier?

Actually, there is not a difference in the units themselves, the difference is in the ratings provided for the appropriate pond size and flow rate. By following UV sterilizer ratings the pond should have clear water despite most other conditions and the UV will also be more effective against controlling microscopic pathogens.

A UV clarifier rating typically means that you may not have crystal clear water all the way to the bottom. It also assumes that the pond has good plant coverage (greated than 50%) and adequate biological filtration. When following UV clarifier ratings it is a good idea to oversize the UV to help ensure cleaner water.

Manufacturer:PondMaster
Manufacturer Model Number: 02940
Made in China

















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