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eBay£55.07Visit shop Doulton British Berkefeld 7 Ultra Sterasyl Ceramic Filter 2 Pack
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The British Berkefeld 7-inch Sterasyl filter candles are designed for homeowners and outdoor enthusiasts who utilize gravity-fed water purification systems and prioritize high-quality, chemical-free drinking water. These candles effectively reduce sediment, bacteria, and particulate matter to enhance both the taste and clarity of your water supply. While these filters provide excellent filtration for gravity systems, they do not remove dissolved minerals or heavy metals, which should be noted by users in areas with specific chemical contamination concerns.
| Model Part Number | 7 Sterasyl |
|---|---|
| Brand | British Berkefeld |
Yes, the 7-inch Sterasyl candle features a standard threaded mount that fits most major gravity-fed water filter systems.
It is generally recommended to replace the candles every 6 to 12 months, depending on the volume of water processed and the quality of your source water.
No, the standard Sterasyl ceramic candle is designed for bacteria and sediment removal; it does not remove fluoride or heavy metals.
Yes, gravity systems rely on the weight of the water above the filter. Flow rate will be slower than a pressurized tap but will remain consistent as long as the filter is clean.
The Sterasyl filter is highly effective at removing bacteria, but if your water source is known to be heavily contaminated with viruses, further treatment may be necessary.
The exterior of the ceramic candle has become clogged with sediment. Gently scrub the surface with a clean scouring pad under cold running water.
Check that the wingnut and washer are properly seated and tightened. Do not overtighten, as this can crack the ceramic.
Ensure you did not use any soap or chemicals during the cleaning process. Only use clean, potable water for rinsing.
To install, screw the threaded stem of the Sterasyl candle through the base of the upper chamber of your gravity filter unit, ensuring the sealing washer is tight to prevent bypass. Before first use, it is recommended to prime the filter by letting water flow through it for several minutes. For long-term care, always handle the ceramic body with clean hands to avoid contaminating the surface. When the flow rate noticeably diminishes, use a soft abrasive pad (like a Scotch-Brite sponge) to gently scrub the exterior of the candle under running water. Never use soap or detergents. Replace the candles every 6 to 12 months, or as directed by the volume of water filtered, to ensure continuous performance.
