While traveling, I came upon an operating large scale layout that ... There are no drain holes, but I don't water heavily.

The right size of drainage holes is also important because they need to be large ... of a planter is generally unnecessary, ...

large cast parallel arms equipped with double bushings, disc openers with double-row bearings and hardened scrapers, and greaseless row markers. The 5670 pivot fold, split row model planter is ...