How Often Should You Replace the Water in a Lura Vacuum Cleaner?

The Lura Vacuum Cleaner is distinguished by its innovative water-based filtration system, which captures dust, dirt, and airborne particles in water rather than a traditional bag or dry filter. While this design offers exceptional air purification and cleaning power, it also introduces a key maintenance question: how often should you replace the water? This guide explores best practices for water replacement, explains why it matters for hygiene and performance, and provides practical tips to help you get the most out of your Lura.

1. Understanding the Role of Water

Lura’s water filtration system works by drawing air — packed with dust, pollen, pet dander, and other particles — through a basin of swirling water. As the air passes through, contaminants become trapped, and only clean air is released back into your home. This process not only cleans surfaces but also purifies the air, making it ideal for allergy reduction and maintaining indoor air quality.

However, the effectiveness of this system depends entirely on having clean water. Once that water becomes murky or foul-smelling, it loses its ability to filter properly. That’s why timely water replacement is vital.

If you’d like to learn more about the science behind this system, check out the full water vacuums page for in-depth explanations and model comparisons.

2. Replace Water After Every Cleaning Session

Regardless of how much area you cover, replacing the water after each session is a must:

Fresh starts ensure that contaminants aren’t carried over.
Hygiene is maintained — stale water can breed bacteria and emit odors.
Air filtration remains effective when using clean water.

Even during a quick vacuum, the water collects microscopic particles and larger debris. Leaving it in the basin can diminish air quality and reduce suction effectiveness.

3. When to Change Mid-Session

For larger homes or deep-cleaning jobs, one basin can become saturated quickly:

Watch for cloudiness — if the water becomes visually dirty, it’s time to change it.
Odor detection — unpleasant smells mean contaminants have reached high concentration.
Reduced suction — dirty water may impede airflow, lowering cleaning performance.

Pro cleaners often replace basin water every 20–30 minutes during intensive jobs to maintain high performance and hygiene.

4. The Dangers of Leaving Water Overnight

Never leave dirty water sitting in the basin after your session ends. Singapore’s humid environment accelerates bacterial growth and can cause mildew and unpleasant odors to develop. Even after a short period, bacteria may multiply, creating a health risk when the machine is next used.

Instead:

Empty the basin immediately.
Rinse thoroughly with warm water.
Dry completely by air or using a clean cloth.

This simple routine greatly extends your machine’s lifespan and ensures optimal performance at each use.

5. Clean Water Means Fresh Air

One of Lura’s standout features is air-washing — the ability to cleanse the air while vacuuming. This benefit only works when the water is fresh. Dirty or stagnant water loses its ability to trap airborne particles. Worse, it may emit odors back into your home.

With clean water, Lura effectively captures:

Fine allergens like pet dander and pollen
Micro-dust particles that settle later on furniture
Odor-causing elements from pets, cooking, and dampness

6. The Essential Oils Dilemma

Many users enjoy adding essential oils like lavender or eucalyptus to their cleaning routine, giving their home a pleasant, natural scent. However, essential oils do not preserve water quality. Even if you add oil for fragrance, always change the water after use.

If you enjoy that fresh aroma, add the oils to the water before starting a fresh session — but still plan for a full water change afterward.

7. Suction Power and Water Quality

Dirty water in the Lura basin doesn’t just smell — it can reduce suction efficiency. As debris-laden water builds up, it may clog internal pathways, strain the motor, and lower airflow. Clean water ensures the motor operates smoothly and maintains strong suction levels.

8. Scheduled Deep Cleanings

To keep your Lura running smoothly over time, schedule deeper maintenance:

Monthly: Remove and rinse all attachments, hoses, and filters.
Quarterly: Check basins for mineral sediment or residue; consider a mild vinegar soak if needed.
Annually: Inspect seals, hoses, and gasket integrity to maintain airtight performance.

The official cleaning accessories page offers replacement parts and tools to help with routine upkeep.

9. Knowing When Water Looks Too Dirty

Visual cues can indicate when water needs replacing mid-session:

A dark brown or grey hue
Visible debris or fibrous particles
Sediment settling at the base after a few minutes
Decreased clarity or transparency compared to fresh water

10. Setting Habits for Busy Lifestyles

To make water replacement easy and consistent, try this routine:

After vacuuming, pour out used water.
Rinse basin and rinse attachments.
Dry with a cloth or allow an hour of air-drying.
Top up next use with fresh water and optional essential oils.

This simple routine prevents odor, bacteria growth, and performance drops — vital for homes with pets, kids, or allergies.

Final Thoughts

For the Lura Vacuum Cleaner to deliver optimal results in both cleaning and air purification, clean water is non-negotiable. Here’s a quick summary:

After every session, swap the water.
For large jobs, change mid-session when murky.
Never leave dirty water overnight.
Use clean water + essential oils at the start for fresh aromas.
Maintain weekly and monthly routines for attachments and basins.

When you commit to fresh water and regular maintenance, you’ll enjoy powerful suction, pure air, and a machine that lasts. Consider exploring the official store to browse updated models, spare parts, and cleaning kits.