No or insufficient condensate separation in the compressed air
Cause of problem:
No filtration
Remedies:
- Install suitable water separator
- Install suitable fine filter
Cause of problem:
Only water separator available for filtration
Remedies:
- Add suitable fine filter, e.g. with a filtration degree of 0.01 µm to the water separator
Cause of problem:
Not every single gun connection is equipped with a compressed air filter
Remedies:
- Every single outlet must feature a compressed air filter consisting of water separator and fine filter
Cause of problem:
Too high a temperature of the compressed air causes the condensate to be "pulled along"
Remedies:
- Add cooling device
- Increase pressure compensation container
- Compressor is too small and gets hot. Can be seen in permanent compressor run. Install additional or larger compressor.

Condensate amounts are repeatedly pulled along from low spots or similar places; filters are mere "aerosol" (droplet) separators and cannot separate water "breakthroughs" from the compressed air. Thus, the condensate flows through the filter.
Cause of problem:
Main compressed air line exit does not move upward in swanneck shape; condensate runs into exit.
Remedies:
- Install compressed air line exits upward in swanneck shape
- Install compressed air lines with a decline of 1 - 2 % and add a condensate discharge at the end, complete with "water trap".
Cause of problem:
The compressed air line has low spots, i.e. if the line is fed into a second building through the ground (earth / hall floor)
Remedies:
- Remove low spots
- Install a condensate discharge and collector inside the low spot
Cause of problem:
Attention: Hose exits through hose rolls at the main air line, too, lead to low spots
Remedies:
- Install a water separator before the hose rolling device, to avoid the collection of condensate in these low spots

The water separator does not continuously discharge condensate; filter is overfilled; the condensate is gradually pulled along
Cause of problem:
No condensate discharge available
Remedies:
- Install condensate discharge in the filter
Cause of problem:
The filter only features a manual discharge which is not activated frequently enough
Remedies:
- Install automatic condensate discharge valve in the filter, or ensure that the manual discharge is activated frequently
Cause of problem:
Automatic condensate discharge valve does not work properly
Remedies:
- Replace or repair and examine condensate discharge valve

Installation of plastic tubings in places exposed to heat
Cause of problem:
Due to the high heat expansion of the plastic (approx. 10 % at 20° C), low spots appear between the holding clamps (the line starts to sag)
Remedies:
- Install galvanized steel pipe
- Install stainless steel pipe
- Never use copper, as air and condensate cause corrosion (verdigris may cause color shade changes)