You cannot build a paintball tank. It is dangerous to even try, because if your tank does hold the pressure, it will explode and you will most likely be killed. Tanks are only $30 dollars, and any material that could hold it, plus the cost of a valve will be more expensive.
a butterfly valve.
Gravel is added with mortar to make concrete.Another answer:Cement is mixed with just water and perhaps some fine sand to make mortar. Gravel or rocks, strengthening agents in load bearing concrete, can interfere with mortar in that mortar needs to work something like an adhesive.
to make mortar
The paintball gun does not use any parts that have not been make in other industries before.
No. Paintball teams generally don't make enough money for scholarships.
If you play professinal paintball and get sponsored then yes. Otherwise there is not a way to make money from paintball.
a paintball bunker can be made out of almost anything you can think of really ive seen people make them out of wood and screen doors tires
the related link should answer your questions.
Paintball wars can be played at Official Paintball in Texas. It is usually required to make a reservation, and this can be done by contacting the park, either by email or telephone.
Paintball alone is not going to change anyone. If you enjoy paintball, and want to play well you will have to be active, and if you keep playing, i would assume you are happy.
With mortar and brick
to make it weaker