Need Answer - Tank Questions

I have rarely seen a better response to what is so clearly homework. While you are to be lauded for your responses, may I suggest you sure did not do the OP any favours.

The purpose of such course work is so that the student can begin to make connections in his or her own mind on how and why such systems work. By taking the easy road... they "cheapen" their educational experience. One of the main reasons that such posting/responses are frowned upon here.

I thought about this question before answering. Perhaps it is homework, but who do I go to for questions on homework. I look in books, I ask instructors and I search the internet. When I am looking for specific answers and they are spread around a textbook that is verbose and sometimes difficult to find exact passages I recall reading but now cannot find it would be nice to have an expert to ask who can provide concise answers to specifics I need to study.

If that individual is a student, I hope I have answered his questions well enough for him to use my words as a study guide. I know I only glossed over cathodic protection and evaporative loss prevention, but they are topics for classes dedicated to their subjects and most texts would only provide brief definitions of them.

I don't mind augmenting a textbook, especially if I feel that student might be reading a textbook in his / her second language.

Agreed. However, may I suggest, that if the OP would have added any discussion or mentioned what it was they understood or did not understand on these points, then many here, myself included, would go to great lengths to pass on what knowledge on the subject they had.

Perhaps it is an incorrect perception on my part, but when a poster shows up here, who has had , say, less then 10 postings, and asks multiple simple and easily researched questions on whatever engineering discipline they are asking about, the perception is one of "this is a student asking about homework, who has no knowledge on the matters at hand and is only interested in getting the answers to "get the assignment out of the way".

Lets face it... in today's world, where numerous points of access to the "engineering world" exists, there is no valid reason for anyone, other then shear laziness, to show up at this forum and pose such simple and basic questions.

I love to teach, and have taught many courses to adults consisting of both electrical trade course and general interest computer courses, when the flow of the process is both ways and passionate, the teaching process can be an incredible worthwhile experience for both parties.

For what it is worth... IMHO, perhaps I am wrong, I feel we have a requirement as engineering and trades professionals to pass on what we have learned from those who taught us. This person did not appear, al least to me based on what they posted, to want to learn, they appeared to want to get something out of the way.

Thank you and Best regards for answering.

1 - http://rhinoliningsindustrial.com/

2 - to control drain pressure?

3 - so it doesn't explode

4 - so it doesn't corrode

5 - disperse moisture

6 - evaporation