very good course but it has an incentive information

Well informative, easy and straight forward.

buying certificate is not a good thing

very good and very specific course

VERY VERY GOOD AND BENEFIT FOR ME

Nyc experience to learn this way

Very good summary on this topic

very interesting and useful!

Very interesting and clear

self learning

good

Good

I benefit from this course more such as methods of treatment to water, kinds of diseases which come to human by pathogens from during contamination water and devices that we use it in treatment, chamicals and chlorine taps ...etc. Finally, I would like to say thank for all instructors or anyone contributes in preparing this course to content all this information which add more and more to gain further background so again thank you so much.

in my opinion, i think you must give more no. of attempts in small duration of time. i mean 168 hours is a very big duration of time.

good

I worked hard in this course to achieve certification that may it help me in future but institute clearly written that it doesn't mean that student learned about this course.

Videos were too long.