I believe oil is considered hazardous waste and you need to have it professionally removed.
Light fuel oil storage tank
You can purchase an oil storage tank online from the Heating Oil Storage Tanks website. Once on the page, click on "Find a Roth Installer Near You" to find a service in your area.
A tank which stores water, oil, gasoline, or air.
A heating oil storage tank can be purchased from several different places. Some of these places include Roth Industries Incorporated, Van Doren Oil Company, and Highland Tank.
Three weeks is no biggie. If it makes you feel better disconect the battery before storage and check the tire pressure and oil level in addition to leaks under the vehicle before driving again. Longer storage will require you to empty the fuel tank and change the oil right before storage.
To seal a small hole in a domestic oil tank, first, ensure the tank is empty and the area around the hole is clean and dry. Use a suitable epoxy or sealant specifically designed for metal and oil applications, applying it generously over the hole and smoothing it out. If the hole is larger or the tank is significantly corroded, consider using a patch made of metal secured with a strong adhesive or mechanical fasteners. Always check local regulations and safety guidelines before attempting repairs, and consult a professional if necessary.
The remaining run time of an oil tank when it's almost empty can vary depending on the size of the tank, the rate of oil consumption, and the efficiency of the heating system. It's recommended to monitor the oil level regularly and schedule a refill when the tank is around 1/4 full to prevent running out of oil. In an emergency situation, it's best to contact a fuel provider for immediate assistance.
empty?
Ullage is the empty space in the tank.
The dimensions of a 10,000 gallon oil tank are 120 inches wide by 17 feet tall. A 10,000 gallon oil tank empty weights about 8,500 pounds.
in case of problem in float of IOT, seal oil tank will be empty and to provide oil to seals DC seal oil pump suction is given from IOT.
mud tanks,shake up tanks ,intermediate tank,reserve tank,trip tank,section tank..