We have a small horse farm, and we have to truck our manure away. There is a decent sized creek that runs through the property, and the only way to store the manure would be to build an expensive containment shed. So, we had decided to put the money into a dump truck or trailer, rather than a shed. The state approved us taking it up to my dad's place, which has no creeks or streams nearby. The manure is given away twice a year for gardens, so only so much is accrued.
We had a dump truck, but dad decided that he'd rather have a dump trailer. I won't go into the reasons why, because it has no bearing on the question. I will say that we sold the dump truck, and have purchased a new, 16' Kaufman gooseneck dump trailer. I am driving down to NC on Tuesday to pick it up, and before we put it into service, we want to do more to the inside of the bed than the standard enamel paint that is on it. I will spray the underside and frame with Fluidfilm, but I'm thinking of an etching primer and marine paint on the interior. Anybody got experience with a dump trailer and manure, and have a good plan that has worked?
On the dump truck, we had painted the inside and outside of the bed with POR-15. It help up well to the manure, but it faded and flaked- we've learned some lessons since doing that job. I'm not opposed to POR-15 again, but would rather use something else that is easier to work, and probably less expensive, but effective. I'm thinking that marine paint will resist the acids pretty well, but that's just a guess. Any experienced input would be appreciated!