Fitness Equipment

WaterRower: Understanding Resistance, Adjustments, and Optimal Use

By Jordan 6 min read

Adjusting a WaterRower involves optimizing user fit, managing water level for resistance feel, and customizing monitor settings, as its hydrodynamic resistance self-regulates with user effort.

How do you adjust a WaterRower?

Adjusting a WaterRower primarily involves understanding its unique self-regulating resistance system and then optimizing user fit and monitoring settings, rather than manipulating a fixed resistance dial like other rowing machine types.


Understanding WaterRower's Unique Resistance

Unlike air or magnetic rowing machines that feature external damper settings or magnetic resistance levels, the WaterRower operates on a fundamentally different principle: hydrodynamic resistance. Its patented WaterFlywheel technology consists of paddles enclosed in a water tank. As you pull the handle, the paddles move through the water, creating resistance.

The key characteristic of this system is that the resistance is self-regulating and proportional to your effort. This means:

  • The faster and harder you pull, the greater the resistance. The water naturally provides more resistance as the paddles move through it at higher speeds.
  • The slower you pull, the less resistance you encounter. This mimics the natural dynamics of rowing a boat on water, where your power directly dictates your speed and the resistance felt. Consequently, there is no "fixed" resistance level to adjust in the traditional sense.

Key "Adjustments" for Optimal Performance

While the core resistance is user-driven, there are specific elements on a WaterRower that can be adjusted to optimize your rowing experience, comfort, and data tracking.

Water Level (Resistance Feel)

While it doesn't change the fundamental "resistance curve" of the machine, the water level in the tank does influence the feel and initial inertia of the stroke.

  • Higher Water Level: Increases the mass of water the paddles must accelerate. This results in a feeling of greater initial "heaviness" or "substance" at the catch, requiring more immediate force to get the flywheel moving. It can feel more challenging for some users, particularly those seeking a very strong initial connection.
  • Lower Water Level: Decreases the mass of water, leading to a "lighter" or "quicker" feel at the start of the stroke. The flywheel accelerates more rapidly with less initial effort.

How to Adjust Water Level:

  1. Check Current Level: Most WaterRower tanks have a fill line or a recommended volume (e.g., 17 liters or to the specific mark on the tank sticker for S4 monitors).
  2. Add Water: Use the provided siphon pump or a funnel. Only use distilled or purified water to prevent mineral buildup and algae.
  3. Remove Water: Use the siphon pump to draw water out of the tank.
  4. Consider Your Preference: Experiment within the recommended range to find the water level that provides the most comfortable and effective feel for your personal rowing style and power output. Always ensure sufficient water to fully submerge the paddles during the stroke.

Foot Straps and Footboard

Proper foot placement and security are critical for efficient power transfer and injury prevention.

  • Footboard Height: WaterRowers typically feature adjustable footboards (or "heel rests") that allow you to change the vertical position of your feet relative to the seat. This adjustment ensures that your shins are roughly vertical at the catch position, optimizing the mechanical advantage of your leg drive.
    • How to Adjust: Most models have a pin or a lever system that allows you to slide the footboard up or down. Choose the setting where your heels can remain comfortably down at the catch without strain, and your shins are perpendicular to the floor.
  • Foot Straps: The straps secure your feet to the footboard, providing a stable platform for your leg drive and allowing you to engage your hamstrings and glutes effectively during the recovery phase.
    • How to Adjust: Ensure the straps are snug but not overly tight, allowing for slight movement. They should cross over the widest part of your foot (just below the toes) to prevent your feet from slipping forward during the drive or lifting excessively during the recovery.

Monitor Settings (S4, SmartRow, etc.)

While these don't adjust the physical resistance, they allow you to customize the data displayed and track your performance effectively.

  • Units of Measurement: You can typically switch between various units for pace (e.g., meters/500m, mph, km/h), power (watts), and energy expenditure (calories).
  • Workout Programs: Many monitors offer pre-set interval programs, target distance/time workouts, or custom programming options.
  • Connectivity: Modern WaterRower monitors (like the SmartRow) connect to apps on your smartphone or tablet, providing enhanced data, analytics, and interactive workout experiences.
    • How to Adjust: Refer to your specific monitor's user manual for detailed instructions on navigating menus, changing units, setting up workouts, and connecting to external devices.

Optimizing Your Stroke, Not the Machine

The most significant "adjustment" you can make on a WaterRower is to your rowing technique and effort. Since the machine's resistance is directly tied to your power output, focusing on proper biomechanics will yield the greatest improvements in performance and workout effectiveness.

  • Stroke Rate vs. Power: You can vary your workout intensity by adjusting your stroke rate (strokes per minute) and/or the power applied per stroke. A lower stroke rate with higher power per stroke builds strength and muscular endurance, while a higher stroke rate with moderate power per stroke improves cardiovascular fitness.
  • Proper Technique: Adhering to the "legs, core, arms; arms, core, legs" sequence is paramount.
    • Catch: Strong connection, shins vertical.
    • Drive: Powerful leg push, followed by body swing and arm pull.
    • Finish: Lean back slightly, handle to lower ribs.
    • Recovery: Arms extend, body pivots forward, legs bend.

Maintenance for Consistent Performance

While not an "adjustment," regular maintenance ensures your WaterRower continues to provide consistent and optimal resistance.

  • Water Purification: Add purification tablets (supplied by WaterRower) to the tank every 6-12 months to prevent algae growth and keep the water clear.
  • Cleaning: Wipe down the rails and frame regularly to prevent dust and grime buildup, which can affect the smooth movement of the seat.
  • Component Checks: Periodically inspect the bungee cord, foot straps, and other moving parts for wear and tear.

When to Seek Expert Advice

If your WaterRower feels inconsistent in its resistance, makes unusual noises, or if you suspect a mechanical issue beyond simple adjustment, consult the WaterRower user manual for troubleshooting or contact WaterRower customer support. These machines are robust, but like any fitness equipment, they can benefit from professional attention if problems arise.

Key Takeaways

  • WaterRower's hydrodynamic resistance is self-regulating, meaning resistance increases with your effort, unlike machines with fixed settings.
  • While not changing fundamental resistance, adjusting the water level in the tank influences the "feel" and initial inertia of the stroke.
  • Properly adjusting footboard height and foot straps is crucial for efficient power transfer, comfort, and injury prevention.
  • Customizing monitor settings allows users to track performance, change units, and utilize pre-set workout programs.
  • The most significant "adjustment" for performance is refining your rowing technique and effort, as resistance is directly tied to your power output.

Frequently Asked Questions

How does the WaterRower's resistance system work?

The WaterRower uses a unique hydrodynamic resistance system where paddles move through water, creating resistance that is self-regulating and proportional to your effort.

Can I manually change the resistance level on a WaterRower?

No, there is no traditional "fixed" resistance level to adjust; the resistance automatically increases or decreases based on how hard and fast you pull.

How does adjusting the water level in the tank affect my workout?

While it doesn't change the fundamental resistance curve, a higher water level creates a heavier initial feel, while a lower level results in a lighter, quicker feel at the start of the stroke.

What physical adjustments can I make for a better fit on the WaterRower?

You can adjust the footboard height to ensure your shins are vertical at the catch and secure your feet properly with the foot straps for stable power transfer.

What is the most important "adjustment" for optimizing WaterRower performance?

The most significant improvement comes from optimizing your rowing technique and effort, as the machine's resistance is directly tied to your power output.