Water Tanks

If you bury one and have the other slightly raised above ground level you could connect them in tandem with the upper one feeding into the lower to which you connect a pipe to the outlet, which of course you could take to a stand pipe with a spicket, then  as long as you have a water level in the top one higher than the spicket you will get water, no need for pumps, this could all be done without burying a tank but you would need to ensure that any framing is strong enough to hold the weight of the top tank safely

Connecting the 2 is a fab idea!I actually won a water butt pump in a competition this year. It is battery and came with a battery Recharging kit. Fab bit of kit.    

I usually run a hose from the water butt and water into sunk milk containers. Obviously it took ages but this kit is brilliant.

I thought I could just pump the water from the tanks into my Water butts when they became empty.