A pondless waterfall is a waterfall without the pond. You still get the wonderful sight and sound of running water in your garden without having a pond. Pondless waterfalls can be tucked into a small corner of the garden, or they can stretch across the yard. No space is too big or too small!
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If it is flexible, you will have to cut the hose close to the connection and un-thread the connector. You will have to re-install with a new one. Make sure to use some silicone on the threads as you thread the new connector into the waterfall unit. Once the connector is snug, then you can ...»
If the pipe is Kink-Free, add some heat to the hose where it meets the barbed connector. Remove the hose clamp. Then try to remove the hose from the connector by pulling and twisting. Once the hose is free from the connector, unscrew the connector from the waterfall unit. Add some silicone to the threads and re-install the barbed connector into the waterfall unit. Now force the Kink-Free hose over the barbs and push it as far on to the barbs as you can. Then add the hose clamp to the center of the barbed area around the hose. Tighten with a screwdriver or 5/16" Hex Driver until tight. You will now have a water tight connection.
As far as the silicone goes, since you are building a pondless with no fish, you can use any brand of silicone that you can purchase locally. IE: GE Silicone ll Window & Door, Aquascape Silicone, Etc.