If you’re going to build the water feature all by yourself, you will need a some stuff to do that, like a submersible pump, pond lining etc. The links to these have been included down below. Some people prefer to go for the easier option – building the water feature with a kit. You will get more info on this at the post “Building the water feature using kits”.
Pond underlayment:
This is a thickish type of material that goes into the dug-out hole first to protect the PVC/polyurethane/polyethylene lining from being pierced by anything sharp in the hole, like sharp little stones. Pond underlayment comes in different sizes, so you have to make sure that you have enough. A wide variety is available at Amazon.
Pond liners (black polyurethane/polyethylene/PVC):
They not only come in different sizes (in sq. feet), but also in different thickness (in mils). Make sure you get one big enough to cover not only the hole, but also the sides and the area where you want to put your rocks (as in the image below). You can get any size and thickness at Amazon, but rather go for the thicker ones (30+ mils).
Submersible pumps:
A wide variety of submersible pumps are available at Amazon.
Small: Beckett 7060310 535 GPH Submersible Pump
Smart Solar Infinity 600 gph Magnetic Drive In-Line/Submersible Pump
Medium:
Wayne Submersible Utility Pump – 1740 GPH, 1/5 HP, 1 1/4in., Model# VIP15
EcoPlus 2245 GPH Submersible Water and Hydroponic Pump
Smart Solar Infinity 2250 gph Magnetic Drive In-Line/Submersible Pump
EcoPlus 3170 GPH Submersible Water and Hydroponic Pump
Large:
EcoPlus 4950 GPH Submersible Water and Hydroponic Pump
Cal Pump Magnetic Drive Waterfall Pump – 5200 GPH, Model# PWM5200
Piping etc.
All you need in tubing, stainless steel clamps, ball valves and float valves are available at Amazon.
Extra pond filters:
You could consider one of the following to support the built-in filter of the submersible pump: