If you are seeing small, worm-like creatures in your sink, they are most likely drain fly larvae, commonly referred to as drain worms.
What Are These 'Worms'?
These are not true worms but the larval stage of drain flies (also known as moth flies or sewer gnats). As stated in the reference, drain fly larvae (aka drain worms) are typically found in moist areas with organic matter. Your sink drain provides an ideal environment for them to live and develop.
Why Your Sink is a Habitat
Sink drains collect various types of organic matter, such as food particles, grease, soap scum, and hair. This debris lines the inside of the pipes and creates a slimy, moist environment. The reference specifically mentions that drain fly larvae are found in various types of home drains because they thrive on these conditions.
- Food Source: The organic build-up in your drain serves as the primary food source for the larvae.
- Moisture: Drain flies lay their eggs in moist or wet areas, and the larvae need constant moisture to survive and grow.
- Protection: The drain pipes offer a protected space for the larvae to mature before they turn into adult flies.
In nature, these larvae play an important role in decomposing organic matter, similar to how they function within your drain, albeit in an undesirable location for a home.
How to Address Drain Worms
Seeing drain worms indicates a build-up of organic matter in your drain. Getting rid of them involves cleaning their habitat and removing their food source.
Here are common steps you can take:
- Clean the Drain: Use a stiff brush to scrub the inside of the drain pipe opening and any visible areas below the drain cover. This removes the slime layer where larvae live.
- Boiling Water: Carefully pour boiling water down the drain. This can help loosen and flush away some of the organic matter and kill larvae and eggs on contact. Repeat this several times.
- Natural Cleaners: Mixtures like baking soda and vinegar followed by hot water can help break down organic build-up. Enzymatic drain cleaners, designed to break down organic matter, can also be effective without harsh chemicals.
- Remove & Clean the Drain Cover: The underside of the drain cover often accumulates significant organic matter. Remove it, clean it thoroughly, and replace it.
Regular cleaning of your drains can prevent the build-up that attracts drain flies and their larvae.
