The British Berkefeld (Doulton) Ultra Sterasyl® filter, removes everything the Super Sterasyl® filter does with additional heavy metal capabilities and unparalleled filtration of up to 99.38% of PFAS (PFOA & PFOS) contaminants. This filter does not remove fluoride, if fluoride is an issue you can purchase an SCP Fluoride Plus™ on this Southern Cross Pottery website.
British Berkefeld Ultra Sterasyl® (previously ATC Super Sterasyl®) is Doulton’s best selling ceramic water filter candle for gravity water filter systems. The combination of a microfilter ceramic outer, granular activated carbon and heavy metal removal media effectively reduces a range of different contaminants including sediments, microplastics, e-coli bacteria, trace organics, enhanced organics, pharmaceuticals, pesticides, pfas, herbicides, free chlorine, monochloramine and heavy metals such as lead.
Made from durable, food-grade materials and NSF certified, it represents the premium quality and reliability you expect from the Doulton brand.The Ultra Sterasyl Filter, stands 146mm high (5 3/4 inch) and has been specially manufactured by Doulton for Southern Cross Pottery distribution. Unlike the current Ultra Sterasyl candle marketed in Australia, which is 178mm tall and too large for most gravity systems, this filter is designed to fit perfectly. It is compatible with all purifiers made by Southern Cross Pottery and most other brands of gravity filtration systems including Earthtank, Village Pottery Company, Sean Nicholson Clay, Durand, Waterco, Australis, Stefani, Pozzani, Peter Wallace Pottery, and Filteroo.
Other Key Points
Natural Raw Materials: Made from 100% naturally occurring raw materials, this vegan-friendly filters contains no activated alumina or bone ash.
Taste Preservation: Maintains essential minerals like calcium, magnesium, and potassium, enhancing water taste and slightly increasing alkalinity for a healthier pH balance.
Replacement Intervals: For optimal performance, replace the ultra sterasyl filter every 1500 litres or every 6 to 9 months, whichever comes first.
Effortlessly will purify municipal town water, tank water, river water and bore water.
Flow rate under gravity is approximately 900 ml per hour, absolute filtration down to 0.5 micron
Manufactured by Fairey Industrial Ceramic Laboratory (Doulton) in England
No need to sterilise or boil water, as the Doulton® proprietary system inhibits microbiological growth.
The small amount of plastic used in the candle frame is BPA-free.
Each Ultra Sterasyl candle has a unique 10-digit code on the filter frame, guaranteeing authenticity.
The Ultra Sterasyl is the only NSF certified NSF 42/53/372/401 ceramic gravity water filter in the world!
ULTRA STERASYL PFAS reduction as a percentage over time (see more in depth information PFAS REPORT below):
LAB TESTS
Step 1 Place the sealing washer over the threaded mount, if you have been provided with two washers than the first over the threaded mount and the second on the underside of the filter container. The washer (s) are designed to make a seal of the filter forcing the water through the filter nozzle and not the container.
Step 2 Install the filter candle into the hole in the filter container (or upper chamber) and secure with wing-nut. Do not over tighten. Carefully place container into the top opening of the water container, remove lid and leave on benchtop.
Step 3 Ensure the tap is in the OFF position. Fill the upper chamber with water and allow the water to filter into the lower chamber. This initial flow will take time as the filter needs to fully saturate with water. Flow will improve after the initial flushing. Place lid on top of filter container.
Step 4 After the water has run through, open the tap and empty the lower chamber. Discard the first supply of water.
OPERATION
The flow rate of these filters will gradually reduce due to a build up on the outer surface of sediment or any type of particulate build up, this is normal and in fact indicates that the filter is working perfectly. When this occurs the flow rate can be restored by removing the filter from the upper chamber and gently scrubbing the surface of the ceramic with a soft brush or a green scouring pad from the super market under cool running water. Never use any soaps or detergents. Once cleaned it is not necessary to discard any water as you would have done in the initial set up. These filters should be checked on a regular basis to ensure that they are operating properly. Cleaning your filter may be required more often if your source of water is anything other than municipal water which has already gone through some filtration.
TROUBLESHOOTING
If your filter is not working or has slowed down most likely it needs to be cleaned, please refer to OPERATION above.
If your filter is 9 months or older it probably needs to be replaced if it has slowed down significantly and cleaning it makes no difference.
Occasionally when a filter is brand new (and sometimes within the life of the filter) there is an air lock preventing the water from filtering at a normal rate. This can easily be rectified by removing the filter from the upper chamber and placing it overnight in a pot of water with the white ceramic submerged and the plastic thread exposed to the air. In the morning remove filter and re-install.
SMALL SPECKS OF CARBON IN THE WATER
Small specks of activated carbon may appear in your water in the initial days of operation. This material is completely harmless and will disappear with use. This is in part why most manufactures suggest that you discard the first few litres of water.
METALLIC TASTE
When the water first interacts with the carbon media on the inside of the ceramic filter there is a chemical reaction making the water a bit more alkaline and often customers note that there is a metallic taste to the water. This is perfectly normal and like the specks of carbon above this taste will disappear in a few days once the PH of the water returns to neutral. Again this is another reason why manufactures often suggest that you discard the first few litres of water. Slightly elevated levels of PH is in no way harmful and many consumers prefer water to be slightly alkaline; so it is perfectly safe to drink.
