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DIY pond siphon

Updated July 20, 2017

Muck builds up at the bottom of the pond and it becomes stagnant and uninhabitable for fish. Siphoning your pond regularly gets rid of this mess and also provides a way to water your garden. The pond siphon is a water-saving alternative to using the garden hose. If you're lucky, some ponds come with a built-in siphoning system. But if yours doesn't, the DIY process of siphoning is simple once you've assembled a homemade pond siphon.

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Lay the black plastic pipe coil in the water. Fill the pipe with water. If it does not fill, manoeuvre it so that it will. If a garden hose is near, use it to fill the pipe if it doesn't fill by moving it.

Place the plug insert into one end of the pipe once it's filled with water. The pipe doesn't have to be completely filled with water but you should be able to tell how full it is by the weight change. Secure the plug insert. Use a hose clamp and tighten it with a screwdriver.

Tie the poly rope around the breeze block or rock securely. Tie the other end of the rope 30 cm (12 inches) from the open end of the black pipe, leaving 90 cm (3 feet) of rope in between. Secure the rope in place on the pipe by wrapping it with a generous amount of black tape.

Drag the weight into the water so that it pulls in the pipe. The unplugged end should still be near the edge. Secure the rope to the edge so it doesn't fall in. If it isn't long enough, add more rope.

Pull the plugged end of the pipe to the dam area of the pond. Manoeuvre the pipe up and over the dam, keeping it as low to the ground as possible. Drag it so that it is at least 1.2 metres (4 feet) below the bottom of the dam. If there is no dam, drag the pipe to the shallowest part of the pond and pull the plugged end at least 1.2 metres (4 feet) below this.

Pull the plug out of the pipe and hold the pipe securely. It may gurgle, but once the siphon begins the flow will strengthen. Siphon out the desired amount of water. Remove the suction end of the pipe, the weight and rope when you've finished.

Tip

Ensure you buy a long enough pipe and sufficient rope to siphon water from the pond to your preferred location.

Add more than one pipe for faster drainage.

Warning

Do not uncoil the black pipe.

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Things You'll Need

  • Black plastic tape
  • Screwdriver
  • 4.5 kg (10 lb) concrete blocks or rocks
  • 6.5 mm (1/4 inch) diameter poly rope
  • 2.5 cm (1 inch) diameter black plastic pipe
  • 2.5 cm (1 inch) diameter plug
  • 2.5 cm (1 inch) diameter hose clamp

About the Author

Heather Jones has been writing since the age of 7 and she began professional freelancing in 2007. Her work appears at Suite101, Associated Content, Helium and Triond. Jones has a high school diploma and was an honor student in journalism and fiction.

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