The pond is warming up, the filtration is restarting, and the question returns: where to buy the right UV lamp for your outdoor pond? A pond specialist or a retailer capable of verifying your device's part number is a good starting point. The choice must be documented before comparing offers.
On Aquishop, the lamp product pages provide power and compatibility indications. To order with peace of mind, have the full name of your clarifier or filter ready, then verify the proposed part. A search limited to "UV bulb for pond" returns products that do not all meet the same need.
Where to look: three criteria more useful than a long list of shops
First, choose a product page that clearly identifies the part: power, manufacturer part number, base, and compatible devices when known. A photo alone is not enough to confirm a replacement.
Next, check if the information matches your version. An old filter and its successor may have similar names without using the same lamp. The purchase date helps guide the search, but the model number remains more precise.
Finally, check the conditions displayed at the time of ordering: availability of the selected variant, contents sold, and announced delivery time. This information may change. A general mention found in an old description does not replace the current status of the product.
This method is also suitable for in-store purchases. A clear photo of the device's label prevents you from leaving with a lamp chosen approximately from memory.
Preparing your purchase in ten minutes
Gather four items in one folder: a photo of the label, the manual if you have it, a photo of the old lamp, and its legible part number. You can keep this folder for future replacements.
Add the date of the last change and the usual operating period. This information helps distinguish between a preventive replacement and a recent breakdown.
If the device has multiple lamps, note their number. On some models, the total power is the result of several tubes. For example, the Bitron C 110 is associated with two 55 W lamps in the compatibility specifications for the OASE part concerned.
If in doubt, ask for a verification by providing the full model name. "I have an OASE filter for a large pond" does not allow for selecting a part without risk of error.
Bulb, quartz, and clarifier: pay attention to what is sold
| Product searched | Function | To check before purchase |
|---|---|---|
| Replacement UV-C lamp | Consumable electrical component of the device. | Part number, power, base, dimensions, and quantity needed. |
| Quartz sleeve | Transparent protection between the lamp and water on affected models. | Compatibility, condition of seals, and included accessories. |
| Seal or sealing part | Ensures the seal of the assembly planned by the manufacturer. | Position in the exploded view and exact part number. |
| Complete UV clarifier | Device including a chamber and a power supply. | Flow rate, pressure, installation, and suitability for the pond. |
Commercial photos may show a complete device to illustrate a single part. Read the title and the content of the sale. A new lamp does not necessarily include the quartz sleeve, seals, or the electrical head.
Two examples to guide a search on Aquishop
Do you own an old FiltoClear 11000? The lamp presented for the FiltoClear 11000 in 11 W is a lead to compare with the manual of your version. The number appearing in a filter's name should not be interpreted as the power of its lamp.
For several OASE devices using a 55 W lamp, part number 56636 has a manufacturer compatibility list. It includes, in particular, the relevant Vitronic 55 and Bitron C 55 models. An amalgam lamp of the same power requires a different verification.
These examples show how to search for a part, without replacing the need to read the manual. If your device is not mentioned or if its suffix differs, have the compatibility confirmed.
Should you buy a lamp every spring?
The beginning of the season is a convenient time to inspect the installation. However, the decision to replace depends on accumulated hours and the manufacturer's recommendations.
JBL indicates a service life of about 6,000 to 8,000 hours for certain UV-C lamps. A lamp used continuously can reach its recommended lifespan long before a lamp used only part of the year. Other technologies have their own schedules.
The color visible through an indicator does not measure the remaining germicidal performance. Note the change in the manual or in your maintenance log, and use the indicator only according to the function assigned to it by the manufacturer.
A lamp purchased in advance must remain protected from impacts in a place suitable for storage. Keep its label and box: they will be useful for the next order and for transporting the used part to a collection point.
Take advantage of the purchase to check necessary maintenance
Before ordering, inspect the accessible parts under the conditions provided by the manual. A scaled-up quartz sleeve, a deformed seal, or a cracked connector should be identified before reassembling everything.
For some OASE equipment, a maintenance cleaner such as AquaActiv PumpClean may be provided to remove deposits from the equipment. Respect the indications of the cleaner and the device, then rinse the parts as requested. This is to maintain disassembled equipment, not to dose a treatment into the pond.
Do not systematically replace all parts: check their condition and maintenance instructions. However, a cracked quartz or damaged seal must be dealt with before putting it back into the water.
A new lamp does not solve all green water problems
The UV is part of a system. The water must pass through the chamber at the planned flow rate, and the matter retained by the filtration must be removed during maintenance.
A pump changed for a more powerful model can change the flow rate in the device. An enlarged or more populated pond may also exceed the conditions that were used to select the equipment. In these situations, a simple new bulb does not correct the sizing.
Also observe the nature of the problem. Filaments attached to plants and leaves deposited at the bottom require a different intervention than uniformly green water. For accessible waste, a targeted cleaning with a PondoVac 4 can complement maintenance, while monitoring the water level and animals.
Reception and installation: the final checks
- Compare the received part number with the one ordered before dismantling the installation.
- Check the packaging, the base, and the tube without applying pressure to the glass.
- Do not install a part that shows breakage or a visible defect.
- Unplug the device before opening and follow its replacement procedure.
- Put back into circulation and check for leaks before powering up the UV, according to the manual.
Never test a lamp lit in the open air. Its radiation must remain confined within the closed and intact device. The opening safety features must remain functional.
Dispose of the old lamp in an appropriate collection point. Recupel specifies the collection points for lamps in Belgium and the precautions to take in case of breakage. The glass of a used lamp does not go in with bottles in a glass recycling container.
Preparing the restart of the pond
First find the exact model, then compare the lamp, quartz, and any seals to be replaced. A well-prepared order facilitates complete reassembly.
See the lamp for FiltoClear 11000 in 11 W →
See the OASE 55 W lamp, part number 56636 →
Sources
- OASE — Part number 56636: identification and list of compatible devices.
- JBL — UV-C lamps, maintenance and replacement: service life and handling.
- JBL — ProCristal UV-C manual: replacement and operating safety.
- Royal Horticultural Society — Pond filters: role of UV and filtration in maintenance.
- Recupel — Lamps: collection and precautions.
- Aquishop product pages for lamps, PumpClean, and PondoVac 4 cited in the guide.
