Water Bucket is not harmful for Fuel pump, and Fuel is never go to Died with this action.
We had twice two check it in water bucket and fitted in different vehicles, from a half year they work A one.
Just after checking Dry it with dry cloth and air blow simply.
By the way These Kabali automobiles Shop-keeper too purchase these pumps as like this type of Inspection.
Ask to Honest Kabeli Auto Parts Shop keeper then He told U the truth of whole story. ..........