How Often Should You Change Your RO Filter?

Installing an RO water purifier at home is just the beginning — it performs best only when its filters are changed on time. In a place like Patna, where water TDS and hardness vary from area to area, filter life varies accordingly too.

Sediment Filter

This is the first filter that removes mud, rust, and larger particles. Under normal use, it lasts 3-4 months, but if the water in your area is muddier (such as during the monsoon season), it may need to be changed every 2-3 months.

Carbon Filter (Pre & Post)

Carbon filters remove chlorine, bad smell, and taste. They typically last 4-6 months. If you start noticing a chlorine smell in your water, it's a sign that it's time to change the carbon filter.

RO Membrane

The RO membrane is the most important and expensive part. It filters out dissolved salts, heavy metals, and bacteria. Under normal usage, it lasts 12-24 months, but in Patna's high-TDS areas, it may need replacement as early as 12-15 months.

How Do You Know It's Time to Change the Filter?

• The taste or smell of the water has changed
• Water flow has become slow
• The RO unit is making more noise than usual
• It's been 4-6 months since the last service

Best practice is to get a professional routine service done every 4-6 months — this lets the technician check all the filters and recommend whatever needs to be changed.

What Should the TDS Level of Patna's Water Be?

TDS (Total Dissolved Solids) is a measurement that indicates the quantity of dissolved minerals, salts, and impurities in water, measured in ppm (parts per million). TDS levels in Patna's groundwater can vary from area to area, so it's important to check the TDS of your water.

What Is the Ideal TDS Level?

• 0-150 ppm: Excellent — best for drinking
• 150-300 ppm: Good — safe for drinking
• 300-500 ppm: Fair — RO purification recommended
• 500+ ppm: Poor — RO purification is necessary

According to BIS (Bureau of Indian Standards), the acceptable TDS limit for drinking water is up to 500 ppm, but the ideal range is considered to be 50-150 ppm.

What Is Patna's Water Like?

In many areas of Patna, groundwater TDS is between 300-600 ppm, often accompanied by iron content and hardness. This is exactly why an RO water purifier becomes almost essential for Patna homes — normal filtration cannot remove these dissolved salts.

TDS Shouldn't Be Too Low Either

Interestingly, very low TDS (below 50 ppm) isn't ideal either, because the water then lacks essential minerals like calcium and magnesium. Good RO systems include a TDS controller or mineralizer that adds back the necessary minerals to the final water.

How Can You Check the TDS of Your Water?

Our team provides free water hardness and TDS testing service in Patna — a technician visits your home, checks your water's level with a TDS meter, and provides RO setting or filter recommendations accordingly.

RO Water Has a Bad Smell or Taste — What Should You Do?

If the water from your RO has suddenly started to smell or taste bad, don't worry — this is a common issue with a few specific causes, and in most cases it can be fixed with simple solutions.

Common Reasons

• Old Carbon Filter: The carbon filter's job is to remove chlorine and odour. If it isn't changed on time, the water starts to smell.
• Bacteria in the Storage Tank: If the RO's storage tank hasn't been cleaned for a long time, bacteria can grow in it and change the taste of the water.
• RO Membrane Damage: A damaged or expired membrane can allow unfiltered water to mix in, affecting smell and taste.
• Long Idle Period: If the RO hasn't been used for a long time (such as after a vacation), stagnant water in the tank can develop a smell.

What Can You Try at Home?

• Run off the first 1-2 glasses of water if the RO hasn't been used for a while
• Check when the last service was done — if it's been more than 6 months, a service is due
• Check around the RO unit for any leaks or damage

When Should You Call a Technician?

If the problem persists even after these simple checks, it's a sign that the filters or membrane need replacing, or the storage tank needs a deep clean. Our team provides same-day service in Patna and identifies the exact problem with an on-spot diagnosis.

What Is a Water Softener and Why Is It Necessary for Your Home?

A water softener is a device that converts "hard water" into "soft water" — meaning it removes minerals like calcium and magnesium from the water that cause hardness.

Downsides of Hard Water

• Soap and shampoo produce less foam
• Skin and hair become dry
• Scaling (white deposits) builds up in geysers and pipes
• White spots and staining appear on bathroom fittings
• The life of washing machines and RO membranes is reduced

How Does a Water Softener Work?

A water softener contains resin beads that use an ion-exchange process to replace calcium and magnesium ions with sodium ions. The resin bed needs to be periodically regenerated with salt (sodium chloride) — which is why salt delivery and refill service is necessary.

When Should You Install One?

If the water in your area feels "hard" (soap produces less foam, geysers scale up quickly), it's best to get a free water hardness test done. Groundwater in some areas of Patna is naturally hard, especially water coming from borewells.

Maintenance

A water softener periodically needs a salt refill, and a once-a-year resin bed check or replacement is recommended for best performance.

Why Regular RO Servicing Is Essential — 6 Major Benefits

An RO purifier isn't a "fit and forget" device — without regular servicing, it gradually loses its efficiency and safety. Here are 6 important benefits of regular RO servicing:

1. Clean and Safe Water

Changing filters on time ensures contaminants are properly removed from the water.

2. Better Water Taste

Old filters or membranes affect the taste and smell of water — regular servicing prevents this problem.

3. Longer Machine Life

Regular maintenance significantly extends the life of the pump, membrane, and internal parts, saving on costly repairs later.

4. Less Water Wastage

A healthy RO membrane is efficient and wastes less reject water compared to an old or damaged membrane.

5. Avoiding Sudden Breakdowns

Regular check-ups help identify small problems early, reducing the risk of sudden breakdowns.

6. Savings with an AMC

Taking an Annual Maintenance Contract (AMC) can save you 30-40% compared to one-time service charges, plus you get priority support and scheduled visits.

What Is a DM Plant and Why Do Industries Need It?

A DM (Demineralized) Plant is a water treatment system that removes almost all dissolved minerals and ions from water, producing "pure" water with very low conductivity.

Where Is DM Water Used?

• Pharmaceutical manufacturing (injectable and oral medicines)
• Laboratories and testing facilities
• Boilers and steam generation systems
• Electronics and battery manufacturing
• Power plants and cooling systems

How Does a DM Plant Work?

A DM plant typically has ion-exchange resin columns (cation and anion) after the RO stage, which remove the remaining dissolved ions from the water, producing extremely low TDS (near-zero) water.

Why Is Maintenance Important?

DM plant resin beds need periodic regeneration and eventual replacement. In pharmaceutical and industrial setups, routine maintenance through a validated AMC is also necessary for revalidation compliance.

Emergency Support

In industrial and pharmaceutical operations, a halt in DM water supply can affect production — which is why having 24x7 emergency DM plant repair service available is critical.