Here is a koi pond made up from reused material, mainly composed of a plastic pool, wood pallets and a plastic container.
Step 1: DIY Koi Pond
Step 1: Unmount and select wood pallets in good condition.
Step 2: Remove all nails, make necessary marking for desired wood length and cut off waste pieces.
Step 3: Using a circular saw, the surface of the rough wooden pallet is smoothen.
Step 4: Mount all piece together ( Clue, nails, Screws)
Step 5: Using a sander, the surface is polished.
Step 6: Apply wood sealer and varnish
The canister filter is also a home made one.