First Degree Fitness is a leading innovator in fluid resistance fitness equipment, offering premium rowing machines and ergometers with patented adjustable water tank technology.
První stupeň fitness (FDF) is a globally recognized manufacturer of fitness equipment inspired by real-life movement. Best known for their patented Twin Tank Adjustable Fluid Resistance system, FDF products allow users to instantly adjust resistance from feather-light to Olympic intensity at the turn of a dial.
This unique technology is applied across a wide range of indoor rowing machines, upper body ergometers, and fluid exercise cycles. With a focus on durability and aesthetic appeal, their equipment often features sustainably sourced American Ash wood and high-grade steel frames, making them a staple in both commercial facilities and home gyms.
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Use the supplied chlorine tablets to treat the water. If the water becomes cloudy, add one tablet. Wait at least 72 hours after chlorination before adding blue dye, as the chlorine helps clarify the water but can neutralize the dye if added too soon.
Yes, many models like the Apollo and Viking series are designed to stand vertically for storage. Ensure the location is secure, level, and against a wall to prevent tipping.
The patented Twin Tank system transfers water between a passive storage chamber and an active resistance chamber. Turning the dial changes the volume of water the impeller moves through, instantly adjusting the resistance level.
Check the batteries first. If the display works but doesn't update during exercise, inspect the sensor alignment near the flywheel (gap should be 0.5-3mm) and ensure the sensor cable is securely connected.