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RO Help · Navsari

Why Does RO Water Taste
Salty or Bitter?

Salty or bitter purified water almost always comes down to two things — high TDS and a tired RO membrane. Here’s what’s really happening, how to check it, and when to call a technician in Navsari.

HomeRO Water Salty Taste
Why It Happens

What Makes RO Water Taste Salty

The RO membrane is what removes dissolved salts. When water tastes salty, salts are getting through.

Worn-out RO membraneThe most common cause. An old or torn membrane stops rejecting salts, so TDS rises and water tastes salty or bitter.
Membrane overdueMembranes typically last about 2–3 years. Past that, rejection drops and taste changes gradually.
High source TDSBorewell and hard water in parts of Navsari carry very high dissolved salts, which wears the membrane faster.
TDS valve set too highMany ROs blend a little raw water back for taste. If that valve is set too high, the water turns salty.
Leaking O-ring / bypassA worn O-ring in the membrane housing lets raw water slip past the membrane untreated.
Spent post-filterA tired mineral/alkaline post-filter can also leave a bitter or metallic after-taste.
What It Means

It’s Really About TDS

TDS stands for Total Dissolved Solids — the salts and minerals dissolved in your water, measured in mg/L (ppm). Your RO’s whole job is to bring TDS down to a level that tastes clean and is easy to drink.

  • Around 50–150 mg/L — a healthy target for RO drinking water; tastes clean.
  • Rising toward 300–500+ mg/L — you start to notice a salty or heavy taste.
  • Close to your raw water reading — the membrane has essentially stopped working.

So a salty taste is really a message that your purified-water TDS has climbed — usually because the membrane can no longer hold the salts back. In Navsari’s hard, high-TDS water this happens faster than the pack claims, which is why regular checks matter.

Bitter, rather than salty, often points to specific minerals (like sulphates) or a spent post-filter — a technician’s TDS check quickly tells the two apart.

Quick help

Facing this in Navsari? WhatsApp Royal

Tell us your TDS reading (if you have one) and we’ll advise — and if it’s the membrane, we’ll bring a genuine one on a same-day visit.

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Try This First

What You Can Try Yourself

A few safe checks help you (and us) pin down the cause:

  • Measure the TDS — if you have a TDS meter, note the purified-water reading and, if you can, the raw-water reading too.
  • Taste-compare — is the purified water noticeably closer to your tap/borewell water than it used to be?
  • Sudden or gradual? — a sudden jump points to a bypass/O-ring or valve; a slow change points to a worn membrane.
  • Check the membrane age — if it’s over 2–3 years old, it’s very likely due.
  • Flush once — run a glass or two, in case it’s just stored water.

Please don’t adjust the internal TDS valve or open the membrane housing yourself — a wrong setting changes purity and can void warranty. Leave that to a technician.

Get It Checked

When to Call a Technician

Book a Navsari technician if:

  • Purified-water TDS reads high (300+ mg/L) or close to your raw water.
  • The salty or bitter taste stays after flushing.
  • The membrane is more than 2–3 years old, or you don’t know its age.
  • The taste changed suddenly — likely an O-ring/bypass or a valve issue.
  • Water flow has also dropped or the reject water has changed.

A technician will test your TDS, find whether it’s the membrane, O-ring or valve, and fit a genuine part — with the price told upfront. See our RO repair in Navsari page, and read our guide on RO membrane replacement cost in Navsari.

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Good to Know

Salty RO Water FAQs

Why does my RO water suddenly taste salty?
A sudden salty taste usually means raw water is bypassing the membrane — often a torn membrane, a worn O-ring in the housing, or a TDS-adjust valve set too high. The salts the RO should remove are getting through.
What TDS level should RO water be?
For good-tasting drinking water most RO systems are set to deliver roughly 50–150 mg/L TDS. If your purified water reads close to your raw borewell/tap water, the membrane is no longer working and needs replacement.
Does salty water mean the membrane is gone?
Most of the time, yes. The membrane removes dissolved salts, so when it’s worn, torn or past its life the water tastes salty or bitter. A technician can confirm with a quick TDS check.
Is it safe to drink salty or bitter RO water?
High-TDS salty water is usually not harmful for a short time, but it isn’t what your RO should give and can matter for people on low-sodium diets. Better to get the membrane checked than to keep drinking it.
Clean taste again

Get clean-tasting RO water.

One message and a Navsari technician will check your TDS and fix the taste.

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