Do I have to thaw meat before cooking it in the Duromatic pressure cooker?

I'd like to know which size to buy. Is it possible to get too large a pressure cooker?
Maria, Wilbraham, MA

My husband and I are long distance sailors. I have used a pressure cooker for years and love them. Are you able to clean this cooker in salt water and rinse in fresh water? I am concerned about the salt pitting the pan.
Susan, Victoria, BC

I like my recipes in liters and centigrees, not strange measures like pints, cups, gasmarks and Fahrenheit. Should I stay away from any of your cookbooks on that account?
Marianne, Farum, Denmark

I want to prepare steamed cod with lemon and rosemary in my new DUROMATIC. Do you have any suggestions?

My recipes tell me to cook certain dishes at 15 pound and others at 8 pounds. What weights and temperatures correspond to the rings on the stem of the DUROMATIC safety valve?

How often should I replace the gasket on my DUROMATIC pressure cooker?

Why is it that I can only fill my cooker 1/2 full when cooking split peas?