Concrete underground catchment and termites

[JWFITZ]

At current rates a ferrocement tank can be constructed for very little money if you've got the skills. My 4 x 4 8 foot tank with a slate deck on top, +/- 1000 gallons, cost under 800 dollars including the slate. Pretty cheap for a tank that can be built on site with no truck access, anywhere, and with no more tools than snips, a shovel, and a trowel.