Hozelock UV Clarifier Replacement Bulb - 13 Watt - PLS
Best current price£22.99from OnBuy.com
Best offers
Shopping.co.uk recommended and popular offers
OnBuy.com£22.99Visit shop Hozelock 1541 Uv Clarifier Replacement Bulb 13 Watt Pls
Visit shopOnBuy.com£22.99Visit shop All Offers
3 offers from £22.99 - £24.69
View price history by clicking the chart icon.
OnBuy.comHozelock 1541 Uv Clarifier Replacement Bulb 13 Watt Pls
Free delivery in 1–3 days
£22.99
Visit shop
Product Information
Full details
The Hozelock 13W UV replacement lamp is an essential maintenance component for pond owners utilizing the Hozelock Filter and UVC range. Designed to effectively combat green water by emitting powerful UVC light waves, this bulb is perfect for hobbyists looking to maintain a clear and healthy aquatic environment. The primary caveat is that the lamp's UVC output degrades over time, requiring annual replacement regardless of whether the bulb still illuminates to ensure maximum algae control efficacy.
All features
| Model Part Number | 1541 |
|---|---|
| Brand | Hozelock |
Extended Product Information
FAQs
How often should I replace the Hozelock 13W UV bulb?
It is recommended to replace the bulb once every season, typically in the spring, to ensure the UVC output remains at maximum strength.
Can I touch the glass of the bulb with my fingers?
It is best to avoid touching the glass directly. Skin oils can create hot spots on the quartz glass, which may lead to premature bulb failure.
Will this bulb work in non-Hozelock filters?
This bulb is specifically designed for the Hozelock Filter and UVC range. We recommend using it only with compatible Hozelock equipment.
Why does the water look green if the bulb is still glowing blue?
The blue visible light does not indicate the strength of the invisible UVC rays. If the bulb is old, it has likely lost its ability to kill algae.
Do I need to turn off my pond pump when changing the bulb?
Yes, always disconnect the power to the UVC unit and, for safety, ensure no water can enter the housing while the unit is opened.
Troubleshooting
The unit is leaking water after a bulb change
Check that the O-ring seal is properly seated and free of debris; ensure the housing cover is tightened evenly.
Water remains green despite a new bulb
Verify that your filter foam is clean and that the flow rate is not exceeding the recommended capacity for the 13W UVC unit.
Bulb flickers or fails to turn on
Ensure the pins are fully seated in the socket and check the electrical cable for any signs of damage or loose connections.
Pros and Cons
Pros
- Ensures crystal-clear pond water by preventing green water blooms
- Easy to install thanks to the standard PLS pin design
- Maintains compatibility with existing Hozelock UVC hardware
- Reliable performance when replaced on a seasonal schedule
Cons
- Requires annual replacement for optimal algae control
- Glass bulb requires careful handling to avoid breakage or skin oil contamination
- Bulb may still light up even when UVC intensity has dropped below effective levels
Setup, Compatibility & Care
Before handling the bulb, ensure the power supply to the UV clarifier is completely disconnected and the unit has cooled down.
- Power Down: Switch off the power to the UVC unit to prevent electrical shock.
- Access the Housing: Carefully unscrew the UV housing cover according to your specific Hozelock filter model manual.
- Remove Old Bulb: Gently pull the old PLS bulb out of the pin socket. Avoid touching the glass of the new bulb with bare hands, as natural skin oils can cause hot spots and reduce the bulb's lifespan; using a clean cloth or glove is recommended.
- Install: Align the two pins with the socket and press firmly until the bulb is seated.
- Seal: Ensure the O-ring or seal is clean and properly seated before tightening the cover to prevent water ingress.
Keep the quartz sleeve (the glass tube that protects the bulb) clean during the swap; if it appears cloudy, wipe it down with a gentle vinegar solution to ensure the light can penetrate the water effectively.