Pisces 25W Pond Filter UV Replacement Bulb - Twin Pack

Keep your pond water clear with this twin pack of Pisces 25 Watt replacement UV lamps. Designed fo...

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eBayTWIN PACK PISCES 25W WATT REPLACEMENT UV POND BULB FOR FILTER LIGHT T8 SPARE
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Product Information

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The Pisces 25W Pond Filter UV Replacement Bulb Twin Pack is designed for pond enthusiasts who rely on UV clarifiers to maintain crystal-clear water and control algae growth. These high-efficiency T8 lamps are ideal for owners of compatible pond filtration systems from brands like Yamitsu and TMC who want an environmentally conscious, long-lasting lighting solution. While these bulbs offer improved output efficiency via ceramic ends, it is important to note that performance is strictly dependent on the 6-to-12-month replacement cycle required to combat the natural degradation of UV gas.

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BrandPisces

Extended Product Information

FAQs

How often should I change my UV bulb?

For optimal performance and algae control, you should replace your bulb every 6 to 12 months.

Do I need to touch the bulb with my bare hands?

No, it is best to avoid touching the glass directly. Skin oils can damage the bulb and reduce its lifespan.

Is this compatible with my non-Pisces filter?

Yes, these bulbs are designed to be compatible with a wide range of manufacturers, including Yamitsu and TMC, provided the wattage and physical dimensions match.

Does the length include the pins?

The bulb itself is 435mm long, but the total length including the pins is 450mm.

Why are the ends made of ceramic?

Ceramic ends are ozone-friendly and offer better heat resistance, which improves the overall output efficiency of the UV light.

Can I leave the UV light on 24/7?

Yes, UV clarifiers are designed to run continuously during the pond season to maintain clear water.

Troubleshooting

Bulb fails to ignite

Ensure the pins are fully seated in the lamp socket and check that the starter or ballast in your filter unit is still operational.

Water remains green despite new bulb

Check the quartz sleeve for mineral buildup; even a thin layer of scale can block UV light from penetrating the water.

Bulb flickering

Check for loose connections in the filter housing or verify that the ballast is compatible with the 25W power rating.

Pros and Cons

Pros

  • Cost-effective twin pack ensures immediate availability for maintenance
  • Energy-efficient T8 design reduces power consumption
  • Ceramic end caps provide superior thermal stability and UV output
  • Versatile compatibility with leading pond filter brands

Cons

  • UV effectiveness degrades over time, necessitating regular replacement
  • Bulbs are fragile and require careful handling during installation
  • Not compatible with non-standard proprietary filter housings

Setup, Compatibility & Care

Before installation, ensure the pond filter power supply is completely disconnected to prevent electrical shock. Always handle the glass tube with a clean, dry cloth or gloves, as natural skin oils can leave residue on the glass that may burn or cause hotspots, leading to premature failure. Verify that the pins align perfectly with the lamp holders in your unit. We recommend cleaning the quartz sleeve with a vinegar solution whenever you replace the bulb to ensure maximum light penetration. Store the spare bulb in its original packaging in a cool, dry place until needed.

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