Quote Originally Posted by jcoop
Had thought about that also, seams like the cheapest way is maybe a wood box with a pond liner.

There is some great info and a couple threads on Ferrocement that looks good, just not sure of the cost and which coating would work best to seal it completely.

I am using a stock tank for the fish tank and mortar mixing tubs for the growbed.

John
The only thing cheaper is a pond liner in the ground or building it out of dirt somehow maybe using the lay of the land to create some height if you are lucky enough (or the land without a pond liner HA). But yes, that's about the cheapest I have found!