Waterfall Foam expands to fill voids between the rocks and liner, diverting water over the top of the stones. It simplifies waterfall construction and is easier to use than mortar. The foam will not crack in freezing temperatures. The black color of the foam will blend into the waterfall setting by looking like a dark part of stone or a shadow.
Waterfall Foam will not harm fish. It will be cured in 20 minutes and can be easily removed if necessary.
Waterfall Foam will gradually expand after dispensing. Be careful not to over apply. Excessive foam, once cured, can be peeled away. Waterfall Foam is designed to divert 99% of moving water. This product will not provide a 100% water tight seal.
Can I use Black Foam for more than one application? Most foam cans comes in a size that aremade for one-time use, with one applicator included. If you are a professional water feature builder, we highly recommend using a Foam Gun System; a two-part product consisting of a reusable applicator gun and cartridge. While the initial investment is higher, the cartridge system allow you to use every last drop of foam in the container and direct foam application with great precision.
Spare Me! Keep a spare air pump or water pump on hand for emergencies. If your pump ever stops, do not feed your Koi.
Consider using seperate water pumps for your waterfall and filter. This way you will always have a backup, and you can save energy.