I've had trailers with aluminum mangers for a lot of years. Last summer I down sized trailers and this trailer doesn't have the built in mangers. So I installed some corner feed bags.  They lasted 3 maybe 4 trips before the horses had torn out the gromets and the bags were hanging by the last gromet.

Rather than spend a bunch of money new ones and have the same thing happen in 4 trips. I think I want to some how reinforce the bags so they will last. I know the Classic Trailer I had back in 2000 had corner bags and they lasted 5 years no problems. So I expect better than 4 trips.

The current bags are made of pvc/vinyl type of fabric with a light nylon web around the top edge. The gromets were in the nylon edge and just pulled through.

Any suggestions?  I was thinking of taking them into a local saddle maker and having him sew some leather gussets at each corner.

I knew I had asked that question before, I just searched on the wrong words when I tried to find that old post.

Spring is here and it's time to get them fixed.

My horses seem to like to wipe the sweat off after a good ride, They scratch where the headstall sat on the hay in the manger. Since I reverted back to a trailer with out a metal manger, They now rub on the corner hay bag.  Which doesn't tolerate this abuse. 

Never  had a horse even try to get his foot that high. I think it would be pretty difficult for them to get a foot up that high. At least in my trailer configuration.