I converted a cheap pull-behind aerator to 3PT using some scrap steel and my beginner welding skills. I made a couple of concrete weights that fit in the tray to help weigh it down. It works real nice.
<img src="http://www.tractorbynet.com/forums/files/attachments/434204-modify-pull-behind-aerator-3ph-forumrunner_20150725_020050-png"/>
<img src="http://www.tractorbynet.com/forums/files/attachments/434205-modify-pull-behind-aerator-3ph-forumrunner_20150725_020116-png"/>
<img src="http://www.tractorbynet.com/forums/files/attachments/434206-modify-pull-behind-aerator-3ph-forumrunner_20150725_020125-png"/>
<img src="http://www.tractorbynet.com/forums/files/attachments/434207-modify-pull-behind-aerator-3ph-forumrunner_20150725_020136-png"/>
<img src="http://www.tractorbynet.com/forums/files/attachments/434208-modify-pull-behind-aerator-3ph-forumrunner_20150725_020146-png"/>
