To avoid kinks in the thin wall poly tubing, I found that using inexpensive garden hose was was much more effective for use as air hose.
I weighted the garden hose with bricks, spaced about 5 ft apart. As noted above, the bricks have tendency to slide and bunch up due to algae covered garden hose.
This system served me well for three years.
I recentlly added a third air station to the system, and replaced the garden hose with thick wall sinking air line
George Galzener
N.E. texas
