1 LB OF CARROTS = 3 CUPS DICED CARROTS
The tamarind grows mainly in Africa, India, and tropical Asia. (It is indigenous to Sudan and east central Africa.)
The tamarind is a bushy, long-lived tropical evergreen tree, with a spreading crown and feathery evergreen foliage. It has a yellowish wood, fragrant yellow flowers, and long seed pods with edible chocolate-colored acidic pulp. The pulp is utilized in a variety of Indian dishes, and as a syrup, and is one of the main ingredients of traditional Worcestershire sauce.
Just put the seed in any soil. It is very easy to grow. It needs the tropical weather. The seed grow in 1 yr and ready to give you fruits. It gives fruits 3 times a year but the fruit in Summer are the sweetest.
I think what you are asking is which do you measure the inside or the outside of the pipe. From your question there doesn't need to be an answer. Usually it is the inside measurement that is meant. The useful part of the pipe or how much it can carry.