The gasket and the broken studs have been replaced on a tank manhole cover. Which of the following methods is satisfactory for testing the repair?
(A) Pressurize the tank with 10 psig air, soap the repaired area, watch for visible signs of leakage or bubbles.
( Fill the tank with water via the ballast pump until the innage reading corresponds to the maximum depth of the tank.
(C) Hose test the repaired area with a minimum of 100 psig water pressure.
(D) Fill the tank via the ballast pump until water flows from the vent line opening on deck.
Discuss each point and state why it is appropriate or incorrect