The outer diameter of 1/2 inch PVC pipe is approximately 0.84 inches.
Assuming that the INNER DIAMETER of the PVC pipe is 4" (...likely not the case, so you'll need to recalculate for your pipe's dimensions): the volume of the pipe would be calculated as follows: 4" diameter = 2" radius volume_cylinder = Pi*r^2*L; where r = 2" and L = 12" the cylinder therefore has a capacity of 150.8 cubic inches. a gallon of water has the volume of 231 cubic inches. your pipe can hold 0.653 gallons of water. you'll need about 18.38 inch lengths of 4" PVC to hold each gallon of water. again, these calculations rely on the INNER DIAMETER of the pipe being measured at 4" - if this is an outer diameter measurement, the above calculation for the capacity is OVERstated; the 18.38" calculation is UNDERstated.
If a pipe is 12 inches aroud, then that is its circumference. The width is the diameter. To get the diameter, you'll have to divide 12 by pi, or 3.14, and the answer you get is 12/3.14=3.82.
about 10$ per foot ANS 2 You're going to the wrong store if you pay that much. I regularly buy it in Canada for 2.85 per foot.
about 25 bucks per foot .
A PVC pipe glue will take at least 4 hours to dry. 12 hours before putting water pressure in it.
The circumference of 12-inch pipe is: 37.7 inches. (C = d x Pi)Since 12 inch pipe is a nominal size and its outside diameter is 12.75 inches, the circumference of 12 inch pipe actually is : 40.035 inches
You can dig to the pipe, clean it and roughen it, then use purple primer and Weld On 711 to repair it. . I would wait 12 hours for this to cure then do another coat of 711. - I have done this on PVC pipe that was carrying mains water at 85 psi.
It is: 12/pi = 3.8197 inches rounded to 4 decimal places
Go to Appendix C of the NEC book
Depends where you live. Every governing jurisdiction implements acceptable materials to use at different times. PVC has been an acceptable material for water residential main lines in my area for about 12 years. I live in California. But PVC pipe and application of it has been around for much longer.
150
A 100-foot pipe with an inside diameter of 12 inches has a maximum volume of about 78.54 gallons of water.