AQUAPRO AP5000UV Replacement Quartz Sleeve

The quartz sleeve in a pond pressure filter is a transparent tube that protects the UV (ultraviolet) light bulb inside the filter. It allows the UV light to penetrate the water and effectively kill algae and harmful microorganisms. Over time, the quartz sleeve may become coated with algae, debris, or hard water deposits, reducing its transparency and the efficiency of the UV light. Therefore, it’s important to replace the quartz sleeve when needed.

Here are some signs that indicate it may be time to replace the quartz sleeve in your pond pressure filter:

1. Reduced UV Transmittance: If you notice a significant reduction in the clarity of the quartz sleeve, it may be time to replace it. A buildup of algae, mineral deposits, or other debris can obstruct the UV light from passing through effectively.
2. Cracks or Damage: Inspect the quartz sleeve regularly for any cracks, chips, or other damage. Cracks can compromise the structural integrity of the sleeve and may also allow water to bypass the UV light, reducing its effectiveness.
3. Difficulty Cleaning: If the quartz sleeve becomes challenging to clean, and deposits seem to persist despite your efforts, it may be an indication that the sleeve needs replacement.
4. Diminished UV Performance: If you notice that the pond water is not as clear as it used to be, or if you’re having issues with algae control, it could be a sign that the UV light is not working efficiently due to a compromised quartz sleeve.

To visually check the UV globe, look through the clear UV-C indicator on the top of the filter and if the light is working you will see a faint purple glow. This may have to be done at night to see distinctly.