WSP Retention Tank - 24x73"

If your water treatment uses injected chlorine or air to control contaminants, you need enough contact time before the water moves on to filtration. The WSP Retention Tank provides that buffer, holding treated water to ensure the disinfecting action has time to work properly.

The problem

You might notice your system doesn’t seem to fully control odors, tastes, or bacteria even though you’re injecting chlorine or air into the water. That’s often because the treated water is moving too quickly through the system, giving chlorine or air no time to do their job before filtration. Without enough “contact time,” the treatment can fall short.

Why it’s happening

When chlorine or air is added to your water for disinfection or oxidation, they need a certain length of time in a holding tank to react with contaminants. If this holding time is too short, the treatment won’t be effective. Testing can confirm this by measuring residual chlorine levels or bacterial counts before and after the retention tank stage.

What it’s costing you to leave it

When your water doesn’t get enough contact time, chlorine or air can’t fully reduce odors, iron, manganese, or bacteria. That leaves you with lingering smells, staining, cloudy water, and more work on filters downstream. Over time, this can shorten filter life and increase maintenance, along with the ongoing cost of chemicals and cleaning.

How this system fixes it

The retention tank holds the treated water long enough for the chlorine or air to fully react with contaminants. It relies on providing a controlled volume where the water flows slowly, ensuring the chemical or gas contact time meets the treatment requirements before the water moves on to filtration.

What this system can handle

The WSP Retention Tank comes in three sizes to fit different system needs: 24x73", 31x55", and 36x78". These sizes offer varying volumes to provide the right contact time based on how much water you treat and the chemicals used. It works well with injected chlorine or air systems that require consistent holding capacity. Depending on your flow rate and treatment setup, you can select a tank that balances space and volume. The 24x73" size is a common choice for residential or smaller commercial setups, while the larger sizes suit higher flow demands or more intensive treatment schedules.

What you actually get

Each retention tank features a durable pressure vessel covered by a lifetime warranty. The tank itself is built to resist corrosion and chemical damage for long life. The control valve and any electronics associated with the system carry the manufacturer’s standard warranties. Exact valve and accessory details come with your system’s final configuration.

Is this the right size for you

Choose the size that fits your daily water volume and treatment needs. If your system injects chlorine or air at moderate flows typical for homes or small facilities, the 24x73" tank usually suffices. For higher flow rates or heavier chemical dosing, consider the 31x55" or 36x78" tanks. If you’re unsure, we offer free expert sizing help to match a tank to your water use and treatment goals.

Living with it

These tanks require minimal maintenance beyond periodic inspection for leaks and ensuring the system connections are secure. They don’t consume power themselves and have no moving parts inside the tank. Any control valve maintenance depends on the specific valve model installed. Overall, upkeep is straightforward and infrequent.

What it won’t do

This tank provides only contact time for injected chlorine or air. It does not filter out sediment, soften water, or remove dissolved minerals. For those needs, you would add filters, softeners, or other treatment devices separately.

Why buy it from us

Water Softener Plus offers genuine, serviceable retention tanks backed by a lifetime warranty on the pressure vessel. We ship directly from Tampa with free U.S. shipping included. Our team provides real sizing help and answers questions based on daily experience rather than sales scripts. With us, you get straightforward products built to last and support you can trust.

Included with this system

• Lifetime warranty on the tank. The control valve and electronics carry the manufacturer's own warranty.

Specifications

The next step

Order the WSP Retention Tank size that fits your water treatment system today. Use our free sizing help if you need guidance—call 813-810-0438 to speak with a specialist before you buy.