Down |
1. | color used to indicate non-potable water |
2. | required on in Manhattan on all irrigation systems |
3. | pipe can be used in subsurface irrigation |
4. | non pressure rated pipe, usually more expensive |
5. | undesirable reversal of water flow into the potable water supply |
6. | negative or reduced pressure causes.. |
7. | sprinkler used on smaller areas of a residential landscape |
9. | regulates the flow of water |
10. | testable type of backflow prevention device |
11. | common type of solvent weld fitting |
14. | 80% of backflow incidents caused by these |
15. | prevents irrigation system from running when there has been enough rain |
16. | pressure rated pipe |
19. | tells system to turn on or off |
20. | lifts up and keeps the valve open, has coiedl wire inside it |