As part of the after-smoke cleaning process, when the pipe has cooled fully, remove the filter and inspect it. If it is a very dark brown colour, it is time for cleaning or replacing. Being diligent will ensure all the benefits of our system and a dry, clean taste!
Remember that our filters are very effective sponges and have a finite capacity. Once a filter has become saturated with moisture and impurities, its effects are eliminated and the benefits lost. Additionally, as the filter is used beyond saturation, it expands in size to compromise the way it fits into the pipe. It is possible for a filter to become very firmly wedged in the tenon if left too long. This is not irreparable, but can lead to poor pipe performance and ineffective cleaning.
The easiest approach is to replace your filter once it becomes dark brown (almost black) with a new one. We recommend alternating between 2 filters, allowing one to dry while the other is used
Our filters can be cleaned with water and left to dry before re-using. This is effective in a pinch, however, our studies reveal that this method reduces the filter’s ability to operate effectively after a few repeats.