Question :
Consider the following statements regarding pressure filter
1. It is easy to inspect the under drainage system
2. It is not possible to provide time for chlorination in direct supply from it
3. It is not possible to observe the degree of back washing and the agitation process
Which of the above statement is correct?
1. 1 only
2. 2, 3
3. 1, 2, 3
4. 1, 3
Answer :
2 - 2, 3
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