Take a sample of the media quickly. Approximately 10 to 15 samples can be taken with the Filter Judge in the same time it takes to get ONE sample in the conventional manner (putting workers down into the filter).
Accurate representation of the media that is present in the filter (usually within 10%).
The Operator can take a sample of the media without having to take the filter out of service.
With the Filter Judge, the Operator does not have to send workers down into the filter to take a sample.
Using the Filter Judge, there are no confined entry regulations to deal with since there is not an Operator down in the filter.
The Filter Judge may be used to discover or diagnose some of the following problems associated with gravity filters:
-Loss of filter media
-Uneven air scour distribution
-Proximity of the top of the media to bottom of the backwash trough
-Damage to the filter underdrain system