Salvors are hoping to begin pumping 3,000 tonnes of water which have been taken onboard a car carrier which became stranded near to a busy shipping lane.
The Hoegh Osaka was beached deliberately on Bramble Bank sandbank, near Southampton, last Saturday after it began listing as it left the Hampshire port.
The 51,000-tonne ship, which has a cargo of 1,400 cars and 105 pieces of construction equipment, floated free from the sandbank on the high tide on Wednesday and has since been anchored at a spot two miles east called Alpha Anchorage near Lee-on-the-Solent.
Salvors Svitzer have boarded the vessel again today to prepare for the removal of the water which Hugh Shaw, the Secretary of State's representative for maritime salvage and intervention, (Sosrep), said had a film of oil on it from the vehicles in the cargo but did not currently pose a pollution risk.
A Marine and Coastguard Agency spokeswoman said that divers were waiting for calmer weather conditions to inspect the hull for damage.
She said: "The vessel has been held by an anchor on the Alpha Anchorage overnight. Weather conditions on scene have eased and the salvors boarded the vessel at 8.30am to prepare for the removal of water from the vessel. This lengthy operation is expected to get under way today and continue during daylight hours over the weekend.
"During the operation to remove the water inside the list of the vessel will be constantly monitored.
"Because of the weather conditions on-scene divers are still waiting to carry out a further inspect of the hull. They are standing-by and will dive as soon as conditions permit. There is no evidence of pollution."