Tag Archives: Rubbermaid Stock Tank Repair

Rubbermaid Stock Tank Repair

Freeze Crack in my Rubbermaid Stock Tank Bottom
Freeze Crack in my Rubbermaid Stock Tank Bottom

With a half dozen goats, 40 chickens, and 5 turkeys there is always a demand for stock tanks. I have always had good luck with Rubbermaid structural foam stock tanks, as they won’t rust out like galvanized steel stock tanks. However, they are very difficult to repair. I have had a couple of 150 gallon tanks crack in the exact same spot (the curved area in the vicinity of the drain plug). I believe this is caused by ice expansion if they freeze solid (which will easily happen in a New Hampshire winter). I do have a 300 gallon Rubbermaid stock tank that has never cracked in 5 years of tough service.   I think this is because I always keep a stock tank heater in it, and some of the smaller ones I don’t bother (hence the cracking). At any rate, the internet is full of ideas how to repair these. JB Weld is a popular choice, as well as trying to “weld” the plastic. I think Harbor Freight Tools has a plastic welding kit that some folks have used. I tried a repair with a propane torch (to melt the plastic around the crack) and a screwdriver (to smooth the molten plastic). This worked for awhile, but cracked again that same year. This time, I tried a fiberglass repair kit. Using a paint brush, some fiberglass resin and some fiberglass mat, I carefully coated both sides of the crack for a relatively easy repair. Actually my previous attempt at “welding” actually helped roughen the surface to give the fiberglass something to grab on to. So far, my repair is holding, but I have yet to fully test it. I will report back later to let you know how it is holding up.

Fiberglass Repair Materials
Fiberglass Repair Materials
Repairing the Outside
Repairing the Outside
Repairing the Inside
Repairing the Inside
Finished Repair, Holding Up Well So Far....
Finished Repair, Holding Up Well So Far….