[header] How to use a water level [title] Use 50 to 100 feet (15 to 30 m) of tubing with a 5.16 in (13. 1 cm) diameter. [step] A water level is easy to make at home with plastic tubing and a few other supplies. If you plan to level items that are a far distance from each other, you may opt for a longer tube. 
Keep in mind the longer the tube, the more water you will need to use. [title] Attach 1 end of the tubing to the flat side of a stake or dowel.