How to use a water level<br>Use 50 to 100 feet (15 to 30 m) of tubing with a 5.16 in (13. 1 cm) diameter. 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.
You only need plastic tubing to make a water level.
( z1 need :ARG0 ( z2 you ) :ARG1 ( z3 tubing :cxnsistof ( z4 plastic ) ) :mod ( z5 only ) :purpose ( z6 make :ARG0 z2 :ARG1 ( z7 level :mod ( z8 water ) ) ) )