A siphon looks minor, but it creates the water seal that keeps sewer odours out of the home. A badly fitted trap means leaks, smells and constant trouble inside sink cabinetry.
Where siphons are usually installed
- Bathroom basins.
- Kitchen sinks.
- Bathtubs and shower trays.
- Drain nodes combined with dishwasher or washer hoses.
What matters during installation
- Correct height and geometry.
- Good seals and even tightening.
- Future service access.
- Compatibility with appliance hoses where relevant.
What the work includes
- Choosing and checking a compatible siphon.
- Assembling the trap node.
- Connecting it to the drain and fixture outlet.
- Testing for leaks and odours.
Typical cost
- Siphon installation — from 180 ₪
- If the drain assembly needs rework — higher depending on scope
FAQ
Can any siphon be fitted to any sink?
No. Diameters, height, cabinet space and connection type all matter. This is especially important under tight kitchen sinks.
Why can there still be smell after a siphon is installed?
Usually because of bad assembly, no proper water seal, air draw or a deeper drainage problem further down the line.