Hydraulic ram pumps and Sling Pumps

Lifewater Drilling & Well Construction Manual: Test Your Water Development Knowledge!a pump pad? (Answer)7. How much concrete would you need to make a 2m x 2m x 10cmthick pad (# bags)? (Answer)8. How long should pads cure before installing a cylinder? (Answer)9. How do you help concrete cure completely? (Answer)10. Should concrete be mixed slightly wet or slightly dry? (Answer)Handpump Overview1. What should you inspect on wells & handpumps? (Answer)2. What is the most common problem resulting in handpumps notworking anymore? (Answer)3. If a pump is not producing water, what 3 things should you checkbefore you attempt pump repair? (Answer)4. What is the difference between a "working barrel" and a "downhole cylinder"? (Answer)5. If you have to pump very fast for a long time before water comesout the spout, what is the most likely problem? (Answer)6. If you have to pump very hard to make water come out the spout,but it comes as soon as you pump, what is the problem? (Answer)7. If the pump handle is very hard to push down and it "snaps" backup without producing water, what is the problem? (Answer)8. If a pump's handle is very easy to move up & down and no watercomes out, what is the problem? (Answer)9. If you pump and it feels okay, but little or no water comes out thespout, what is the most likely problem? (Answer)10. If a pump produces water for a little while before sputtering dry,and the works again an hour later, what can you do? (Answer)11. Why are centralizers for the pump rod and casing important andhow can you make them? (Answer)12. What is the key thing to do after fixing a pump? (Answer)http://www.lifewater.ca/Section_Test.htm (4 of 5) [1/13/2005 12:45:16 PM]