Water Softener Leaking – Reasons and Solution

Last Updated on 2 years by

One of the most common problems with a water softener is it gets leaked from various sides. If that gives you heebie-jeebies, then you have landed on the right page.

First of all, relax!

It’s just a water softener that is leaking, which you can fix even by yourself.

So don’t be panic.

Stick to this article, we will reveal some common culprits that cause water softener leaking. Interesting thing is, some of these issues can be fixed by you, whereas others might need professional help.

So, let’s dive in to discover the issues that cause water softener leaking.

Problem 1- Water Softener Leaking From the Top?

Well, if your water softener is leaking from the top then there are two main culprits that are responsible for this mess. Meet them!

Rotor Valve: 

With the help of the rotor valve water softener receives water. So if your softener is quite old, there are possible chances that the water leaking from the top is because of some issues in the rotor valve. In the majority of the cases, the rotor valve is crack which’s why water is leaking. If that’s not the case, then have a deep look at the seal of the valve. It could be possible that the seal might have broken that’s why water is leaking.


Replace the rotor valve. They are easily available in the market.

O-Rings in the Bypass Valve (water softener bypass valve leaking):

The bypass valve allows the water to bypass the system without cutting off the water supply to your home. Bypass valves are really very helpful during water softener maintenance. O-rings are located on bypass valves that need proper lubrication from time to time. With time your softener gets older and so these o-rings are. If o-rings haven’t been lubricated for a long time, then they cause water softener leakage problems.


Replace the O-rings with the new 0 rings and lubricate them properly. You will need special tools and skills to replace the o-rings so it’s better to consult a professional and experienced plumber.

Problem 2- Water Softener resin tank leaking from bottom?

You can fix the water softener leaking from the top, but what about the water softener leaking from the bottom. The truth is, you can also do this. We know the culprit.

Fault In Brine Tank:

The reason for water leaking from the bottom is, the brine tank might have punctured. A brine tank is the place where you keep salt and where a salt Bridge is made. The brine tank might have punctured while cleaning the salt bridge with aggression.


Replace the brine tank. There are certain sealants available in the market that will help to solve the problem temporarily but the permanent solution is a new tank.

Problem 3: Leaking Resin Tank Of Water Softener?

If you have experienced dripping water from the bottom of the resin tank, then don’t worry. We know the issue and its solution:

Cracked resin tank:

The culprit is a crack in the resin tank. The best way to check this out is to clean the tank properly and observe how big the crack is.


Apply epoxy or any other sealant on the crack and let it sit waterless for 6-8hours. Once it’s fixed completely you can start using water softener again.

Problems Related to Hose and Pipes:

If your water softener is leaking from the hose, then the solution is quite straight and easy. Check the connection, if it’s loose for some reason; tighten it- that’s the only solution to this problem. water softener leaking from control head also might be an issue.

On the other hand, if the water softener is leaking from the drain line, then check the drain line. Either It was installed properly with a proper amount of air gap. There might be cracked or burst in the drain pipe.

The solution is to replace the cracked pipe with the new drain pipe. Otherwise, installed it properly. Fixing the drainpipe is a bit difficult task. Seek a professional plumber’s help for fixing it.


Before checking for the reason for water softener leaking, don’t forget to disconnect the unit’s power supply. This step will keep you safe and protected from life-threatening incidents.

Seek a Professional For Fixing Water Softener Leakage Problem:

A water softener can be maintained and repaired easily by yourself. But for some issues, it’s better to call a professional plumber, who must have prior experienced in repairing water softeners. water softeners are a bit complicated system, so instead of wasting your time and energy, it’s a great idea to call a professional plumber.

why is my water softener leaking?

The most likely culprit for a leaky water softener is a punctured brine tank. A brine tank is where you store salt. So if you see water softener leaks from the base, it is likely a salt tank issue.

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