We have a huge 20,000gal water tank. Our water tank has kept us in water which we use very sparingly and carefully for one full year without bringing in a tank of town water. It is full presently as it's still raining. I have also been thinking about a bore as I am the only property around without either a bore or dam. Now the council has been forbidding sinking of new bores for the reason of drying the undergraound water table dry. I would also love to get info about the effect of bores on underground water tables. At the moment I'm thinking about putting in a small pond/dam for the animals who get their water presently in an old bath tub. I'm also considering getting another water tank for the excess flow off as we have a large roof catchment area for rain. I don't know which way to go with all this as my garden really needs water and hasn't been getting what it needs. I usually put my washing up water onto the garden or more specifically on my potted plants. Only the most hardy survive. We also catch our first shower water till it gets hot, for the garden too. If anyone has ideas or information on the subject of water collection etc I would love to hear about it.