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Located under the sink, the siphon is the elbow connected to the drain of the sink or sink. Its primary role is to avoid rising odors. The second is to retain debris, objects and deposits, which could plug the pipes. On old pipes, siphons are not always removable. To unclog, start with the suction cup, more environmentally friendly and less dangerous than chemicals.

Unclog a siphon

Unclog with a sucker

Unclog with a sucker

Cap the overflow with tape.
Place the suction cup on the bung, then pump to empty. Then pull the sucker dry.
Repeat until the water is completely drained.

Disassemble a siphon with rings

Disassemble a siphon with rings

Place a bucket under the siphon.
Block the siphon so that it does not turn during disassembly. Unscrew the rings slightly with a wrench (or pliers).

Clean the siphon

Clean the siphon

Unscrew the rings completely by hand, then clean the siphon with a bottle brush.
Replace seals before reassembly. Always hand tighten the rings then give a turn of the key (1/4 turn).

Disassemble and clean a siphon with a base

Disassemble and clean a siphon with a base

Base models are easier to disassemble. Hold the upper part of the siphon and unscrew the cap.
Clean the inside of the siphon and replace the gasket. Screw on the cap by hand (without straining).


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