At every election conducted under chapter 49, except the primary election provided for by chapter 43, and at every other election unless the law authorizing the election otherwise requires, the vote shall be canvassed at each polling place by the election board in the manner prescribed by this chapter. When the poll is closed, the precinct election officials shall forthwith, and without adjournment:
 1. Publicly canvass the vote, and credit each candidate with the number of votes counted for the candidate.
 2. Ascertain the result of the vote.
 3. Prepare in writing a list of any apparently or possibly erroneous information appearing in the precinct election register.
 4. Designate two election board members, not members of the same political party, who shall each separately keep a tally list of the count.