Challenger Pressure Tank Buying Guide: Sizes, Prices, Common Problems, and How to Choose the Right Well Tank

A well pump that turns on every few seconds. Water pressure that drops when someone starts the shower. A pressure tank that looks fine from the outside but no longer works properly.

These problems can be frustrating, especially when your household, irrigation system, or business depends on a reliable private well.

If you're considering a Challenger pressure tank, the first question shouldn't be, "What's the biggest tank I can afford?"

It should be, "Which tank will work correctly with my pump and water demand?"

We help customers compare well pressure tanks, identify compatible replacements, and understand the specifications that matter before purchasing. In this guide, we'll explain how Flexcon Challenger tanks work, what determines the right size, how to compare costs, and what to check before replacing an existing tank.

What Is a Challenger Pressure Tank, and What Does It Do?

A Challenger well pressure tank is a pressurized water-storage component used with a well pump. It temporarily stores water and uses compressed air, separated from the water by a diaphragm, to maintain system pressure between pump cycles.

When you open a faucet, the pressure tank supplies some of the stored water. As pressure falls to the pump's cut-in setting, the pressure switch starts the pump. The pump then supplies water and refills the tank until the cut-out pressure is reached.

A properly selected and maintained pressure tank helps:

• Reduce unnecessary pump starts
• Provide usable water between pump cycles
• Support more stable pressure during ordinary water use
• Reduce wear associated with excessive pump cycling
• Accommodate varying household or light commercial water demands

It's important to understand that a pressure tank doesn't create additional pumping capacity. If the pump or well cannot deliver sufficient water, installing a larger tank won't solve the underlying supply problem.

Our range of well pressure tanks includes options for different installations, replacement requirements, and operating conditions.

How Do You Know When Your Well Pressure Tank Needs Replacing?

Sometimes the warning signs are obvious. Other times, a failing pressure tank looks normal while placing additional stress on the pump.

1. Your well pump keeps turning on and off

Frequent starting and stopping, often called short cycling, is one of the most common reasons customers investigate their pressure tanks.

Possible causes include:

• Incorrect tank air pre-charge
• Failed diaphragm or bladder
• Waterlogged pressure tank
• Undersized tank
• Leaks or faulty pressure controls

Short cycling doesn't automatically mean the tank has failed. A technician should check the pressure switch, system leaks, pump performance, and tank condition before recommending replacement.

2. Water pressure rises and falls noticeably

Pressure naturally varies between a conventional pressure switch's cut-in and cut-out settings. However, unusually rapid fluctuations deserve attention.

You might notice pressure dropping quickly when multiple fixtures are running or the pump switching repeatedly during a shower.

Before purchasing a new tank, establish whether the problem comes from the tank, the controls, the pump, or the water supply.

3. Water comes out of the tank's air valve

If water emerges from the air valve on a diaphragm-style tank, this commonly indicates a failed internal water-air separator.

A tank with a failed diaphragm generally needs replacement rather than a simple air adjustment.

4. The tank no longer holds its correct air pre-charge

An incorrectly charged tank may provide less usable water and cause more frequent cycling.

Air pressure should be measured with the pump isolated, the water side depressurized, and the tank drained according to the manufacturer's instructions.

If the pressure repeatedly falls after correct adjustment, have the tank and valve checked for leakage or internal failure.

Our advice: Don't replace a pressure tank based on symptoms alone. Confirm the cause first. That can save the cost of buying a part that won't fix the problem.

How to Choose the Right Flexcon Challenger Pressure Tank Size

A common mistake is choosing a pressure tank solely by its advertised gallon capacity.

An 81-gallon tank, for example, does not provide 81 gallons of usable water during each pump cycle.

The total tank capacity and its usable drawdown are different.

Understand tank capacity versus drawdown

Tank capacity refers to the tank's nominal internal volume.

Drawdown is the amount of water the tank can deliver between the pump's cut-out and cut-in pressures.

Drawdown depends on tank size, air pre-charge, and operating pressure settings.

For instance, a tank operating with a 30/50 psi pressure switch will generally have a different drawdown volume from the same tank operating at 40/60 psi.

Always use the manufacturer's drawdown chart for the exact model and operating conditions.

Match the tank to your pump's output

For conventional fixed-speed pump systems, tank sizing is strongly influenced by the pump's flow rate and the minimum recommended run time.

A useful preliminary calculation is:

Required drawdown (gallons) = Pump flow rate (GPM) × Desired minimum run time (minutes)

For example, if a pump delivers 10 gallons per minute and the system requires a minimum one-minute run time, the target drawdown would be 10 gallons.

This is only a preliminary sizing exercise. The actual requirement depends on the pump manufacturer's guidance, control equipment, and system configuration.

Variable-speed constant-pressure systems may have very different tank requirements, so the same sizing assumptions should not be applied automatically.

Consider your household or facility's water demand

Different installations place different demands on a well system.

A single-family home may have predictable water usage during the morning and evening. A large house with irrigation, multiple bathrooms, or high simultaneous water use can create more demanding operating conditions.

Small commercial properties, workshops, and agricultural facilities may also need to accommodate longer or repeated periods of water use.

We recommend evaluating:

• Number of frequently used fixtures
• Peak simultaneous water demand
• Pump flow rate and controls
• Irrigation requirements
• Available installation space
• Minimum pump run-time requirements
• Existing piping and connection size

No single tank model is automatically the correct choice for every property of a particular size.

Comparing Popular Flexcon Challenger Pressure Tank Models

If you're researching Challenger pressure tank prices, start by comparing exact model numbers rather than relying only on the size printed in the listing.

Flexcon Challenger PC66

The Flexcon Challenger PC66 pressure tank is one option to consider when comparing models within the Challenger range.

Before selecting it, review the manufacturer's usable drawdown data at your operating pressures, installation dimensions, connection requirements, and compatibility with your existing pump.

Flexcon Challenger PC122

The Flexcon Challenger PC122 water pressure tank is another model worth checking during a replacement or system upgrade.

A model number match is useful, but it shouldn't replace confirmation of dimensions, connections, working pressure, and required drawdown.

Flexcon Challenger PC244FR: 81-Gallon Model

Searching for an 81-gallon pressure tank? The Flexcon Challenger PC244FR is a specific model to review.

The current product specifications identify it as an 81-gallon diaphragm well pressure tank, also referenced as PC244R.

Key published specifications include:

• Nominal capacity: 81 gallons
• Height: Approximately 62 inches
• Diameter: Approximately 21 inches
• Connection: 1-1/4-inch female pipe thread
• Maximum operating pressure: 125 psi
• Factory pre-charge: 38 psi

This model may be worth considering for larger residential or certain light commercial applications, subject to proper system sizing.

However, an 81-gallon nominal capacity does not mean 81 gallons of drawdown. Confirm its usable drawdown at your operating pressure before ordering.

Flexcon Challenger PC366FR

Customers evaluating larger replacement options can also review the Flexcon Challenger PC366FR pressure tank.

Larger tanks require careful attention to installation clearance, weight, fittings, delivery arrangements, and system compatibility.

If your existing model number is no longer available, don't assume that a visually similar tank is a suitable replacement.

We recommend comparing the original manufacturer's specifications with the proposed replacement before purchasing.

What About Flexcon Flex-Lite Tanks?

Challenger isn't the only Flexcon product family that customers may encounter.

The Flexcon FL-12 pressure tank belongs to the Flex-Lite range and may appear when comparing replacement options.

Different tank families can have different construction materials, dimensions, connection arrangements, and installation requirements.

If you're replacing a Flex-Lite model, verify compatibility rather than choosing a Challenger tank based only on gallon capacity.

Challenger Pressure Tank Prices: What Should You Budget For?

The price of a Flexcon pressure tank depends on considerably more than its physical size.

When comparing Challenger pressure tank prices, examine the full cost of obtaining and installing the correct model.

Tank size and construction

Different capacities and construction specifications affect equipment costs.

A larger tank may have a higher purchase price, but that doesn't automatically mean it delivers better value.

If your system doesn't need the additional drawdown, purchasing a larger unit could add expense without addressing the actual problem.

Shipping and handling

Pressure tanks can be bulky and heavy. Freight costs, delivery access, and receiving requirements can affect the final expense.

For larger tanks, confirm shipping details before placing an order.

Installation labor and related components

If you need professional installation, the total cost may also include:

• Removing and disposing of the old tank
• Replacing worn fittings
• Inspecting or replacing the pressure switch
• Checking the pressure gauge
• Inspecting pressure-relief protection
• Adjusting the air pre-charge
• Testing for leaks and proper pump operation

A low advertised tank price may not represent the lowest total installed cost.

Repair versus replacement

If the only issue is an incorrect air pre-charge, adjustment may solve the problem.

If the diaphragm has failed, the tank is structurally compromised, or the existing model is unsuitable for the system, replacement may be the better option.

We encourage customers to compare the cost of a properly diagnosed repair with the complete replacement cost before making a decision.

For current product availability and model-specific pricing, browse our pressure tank collection.

Should You Replace the Well Pump and Pressure Tank Together?

Not necessarily.

A failed tank does not automatically mean your well pump needs replacement.

Similarly, a failing pump can produce performance symptoms that resemble a pressure-tank problem.

The decision should be based on the condition of both components.

When the existing pump may be worth keeping

If your well pump operates within its expected performance range and passes appropriate electrical and hydraulic checks, you may only need to replace the tank or another defective component.

When a more complete system inspection makes sense

Ask a qualified installer to evaluate the pump when you experience:

• Repeated pressure loss
• Unusually long pump run times
• Frequent electrical or motor-protection trips
• Reduced water delivery
• Recurring system failures after previous repairs

If your installation uses a shallow-well jet pump, our Goulds J5S pump listing provides an example of the separate pump equipment that must be evaluated alongside pressure-tank requirements.

Replacing functional equipment without diagnosing the issue can turn a manageable repair into an unnecessarily expensive project.

How to Check Pressure Tank Pre-Charge Correctly

Incorrect pre-charge is a common issue that can interfere with well-system performance.

For many conventional diaphragm tanks controlled by a standard pressure switch, the recommended pre-charge is approximately 2 psi below the pump's cut-in pressure.

For example:

These values apply only when consistent with the manufacturer's instructions and the installed system design.

Basic inspection procedure

1. Disconnect electrical power to the well pump using the appropriate isolation procedure.
2. Open a water outlet and release the water-side pressure completely.
3. Confirm the tank is drained and not under hydraulic pressure.
4. Measure the air pressure at the tank's air valve using a suitable gauge.
5. Compare the reading with the specified pre-charge for your system.
6. Have the pressure adjusted or the tank inspected as needed before returning the system to service.

Never disconnect pressurized fittings or attempt electrical repairs without suitable training.

If you aren't comfortable identifying the pressure switch settings or safely isolating the system, use a qualified well-water professional.

Common Mistakes to Avoid When Buying a Well Pressure Tank

Mistake 1: Buying according to household size alone

The number of bathrooms matters for understanding demand, but it doesn't tell you the required tank drawdown by itself.

Better approach: Check the pump's output, pressure settings, run-time requirements, and actual water-use pattern.

Mistake 2: Confusing total gallons with usable water

An advertised 81-gallon capacity is not the same as 81 gallons available between pump cycles.

Better approach: Compare manufacturer drawdown tables at the correct operating pressures.

Mistake 3: Assuming more tank capacity means stronger water pressure

A pressure tank stores water under pressure; it does not increase the pump's available pressure or flow capability.

Better approach: Determine whether the pressure problem comes from pump sizing, controls, piping restrictions, or tank condition.

Mistake 4: Ordering a replacement without checking dimensions

Even if two tanks have similar capacities, their height, diameter, and connections may differ.

Better approach: Verify exact model specifications, installation clearance, pipe connections, and pressure ratings.

Mistake 5: Ignoring repeated pump short cycling

A pump that constantly starts and stops can experience additional mechanical and electrical stress.

Better approach: Investigate the problem early rather than allowing it to continue until another component fails.

Mistake 6: Choosing by price without checking compatibility

The cheapest listed tank is not necessarily the cheapest workable solution.

Better approach: Evaluate the complete installed cost and make sure the product suits the existing system.

What Should Contractors and Property Managers Consider?

For professional installers and commercial property managers, replacement selection involves more than equipment price.

An incorrect tank can lead to repeat service visits, downtime, installation delays, and customer dissatisfaction.

We recommend documenting the following before ordering:

Existing equipment: Record manufacturer, model, serial details where relevant, tank capacity, connection sizes, and operating ratings.

Pump and controls: Confirm pump flow, system operating pressure, control type, and required run time.

Site conditions: Check installation access, available floor space, environmental exposure, and applicable local code requirements.

Maintenance requirements: Consider inspection access, pressure-gauge visibility, and future component servicing.

Project economics: Include equipment, freight, installation labor, related fittings, and potential interruption to water service.

For multi-property maintenance teams, maintaining accurate equipment records can also make future replacements faster and reduce ordering errors.

Before You Buy: Our Well Pressure Tank Selection Checklist

Use this checklist before choosing a Challenger pressure tank or an alternative model.

• Identify the existing tank manufacturer and model number.
• Record the pump model and performance information.
• Confirm the pressure switch cut-in and cut-out settings.
• Determine the required drawdown.
• Measure the available installation space.
• Confirm tank connection size and orientation.
• Check maximum operating pressure and temperature ratings.
• Verify whether the current tank has actually failed.
• Compare total equipment, freight, and installation costs.
• Confirm replacement compatibility and availability.

Having this information ready makes it easier for us to help you narrow down a suitable option.

Frequently Asked Questions About Challenger Pressure Tanks

What size Challenger pressure tank do I need?

The correct size depends on pump flow rate, required minimum run time, pressure switch settings, system controls, and manufacturer drawdown data. Household size alone isn't enough to determine the correct tank.

How much does a Challenger pressure tank cost?

Prices vary by model, capacity, construction, shipping arrangements, and availability. You should compare the current purchase price along with installation and related parts. Check our product listings for model-specific pricing rather than relying on outdated estimates.

Is a larger well pressure tank always better?

No. A larger tank can provide more usable drawdown and reduce pump starts in a conventional system, but it won't increase the well's production capacity or compensate for an undersized pump. Select the tank according to the full system requirements.

How long does a Challenger pressure tank last?

Service life varies with water conditions, cycling frequency, pressure settings, installation environment, and maintenance. There is no reliable replacement age that applies to every tank. Regular inspection and prompt attention to cycling problems are more useful than replacing a functioning tank based only on its age.

What is the difference between an 81-gallon pressure tank and 81 gallons of usable water?

An 81-gallon tank has a nominal internal capacity of 81 gallons. Its usable drawdown is lower and depends on the operating pressures and pre-charge. Always use the manufacturer's model-specific drawdown specifications.

Can I replace a Challenger tank with a different Flexcon model?

Possibly, but compatibility must be confirmed. Check required drawdown, working pressure, dimensions, fittings, system controls, and manufacturer guidance before substituting one model for another.

Why does my well pump keep turning on and off?

Possible causes include an incorrect tank air charge, diaphragm failure, leaks, pressure-switch problems, or an improperly sized tank. The system should be diagnosed before replacing components.

What pressure should my well tank be set to?

For many conventional pressure-switch systems, tank pre-charge is set approximately 2 psi below pump cut-in pressure with the water side fully depressurized. Follow the manufacturer's instructions because different system designs can require different settings.

Can a pressure tank improve low water pressure?

It can improve normal pressure-storage performance if the existing tank is failing or incorrectly charged. However, it cannot make an inadequate pump or water source deliver more pressure or flow than it is capable of producing.

Should homeowners install a pressure tank themselves?

Installation involves pressurized plumbing, electrical equipment, and safety requirements. If you're not qualified to work on these systems, have a licensed or otherwise appropriately qualified installer perform the work in accordance with local requirements.

Find the Right Pressure Tank Without Guesswork

A new pressure tank should solve the problem you actually have, not simply replace the equipment that looks suspicious.

Whether you're a homeowner dealing with repeated pump cycling, a contractor sourcing a specific Challenger model, or a property manager planning a replacement, we can help you work through the product specifications before you order.

Explore our available well pressure tanks to compare options.

If you're unsure which model fits your installation, contact us at (866) 202-8388 with your existing tank model, pump details, and pressure switch settings.

We'll help you check the specifications and narrow down the right replacement for your system.