Oily Water Separator (OWS) Simple Guide | Notes

   It is a complete guide for Oily Water Seperator (OWS) on ship. This is a good collection of notes prepared in the purview  of Marine exams in  a simple and easy understandable language with  bullet points.
   As it is impossible to answer all questions at a time it is done on timely basis. please comment below or contact on admin@marinesite.info, once you find any important area, missed out.  Also contact us, if you wish to answer any of the questions listed.

Basics
Different Types Of Filters Used In OWS
> Draw Bilge line from bilge well to overboard
> Working of OWS 15PPM alarm and testing? What liquid is used for checking 15ppm Alarm of OWS? (imp)
> How to test OWS three way valve?
Why there is a vented loop or Anti-siphon tube after OWS and before overboard Valve?
> Why bilge pump is a positive displacement pump not a centrifugal pump?(Imp)

Procedures

Maintenance 
> OWS Overhauling and Maintenance

Troubleshooting
> 15 PPM alarm is coming continuously reasons and remedy ?
> What will be your course of action if 15 p.p.m alarm is showing 20 p.p.m in OWS even after passing clean water through it?

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