Maintenance
How to Clean and Maintain a Water Rower Tank
A water rower asks for the one bit of upkeep other machines do not: keeping the tank clear. It is simple, occasional, and worth doing right.
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A water rowing machine is almost maintenance-free with one exception: the tank. The paddles turn in real water, and water left to its own devices will eventually grow algae and cloud. Keeping it clear is genuinely easy — a tablet every few months and the occasional top-up — but it is the one ongoing chore an air or magnetic machine does not have, and it is worth doing properly.
Purification tablets are the whole routine
The core of tank maintenance is a water-purification tablet dropped into the tank every few months, following the manufacturer’s guidance. The tablet stops algae forming and keeps the water clear. Most owners do this two to four times a year and never think about it otherwise. Keep a supply on hand so you are never tempted to skip it.
Topping up and changing the water
Check the water level against the markings on the tank now and then and top it up if it has dropped, so the resistance stays consistent. If the water ever discolours despite tablets, drain it — most machines ship with a siphon or pump for exactly this — refill with clean water and add a fresh tablet. A full change is rarely needed more than once a year.
Storage and sunlight
Wooden water rowers store beautifully on end — a WaterRowerstands upright in about two square feet — but let the machine dry before you stand it up, and keep it out of direct sunlight. Sunlight both fades the wood and accelerates algae growth in the tank, so a spot away from a south-facing window is kinder to the machine on both counts.
Is the upkeep a reason not to buy water?
Not really. Weighed against a connected rower’s $50-a-month membership, a handful of purification tablets a year is a rounding error — and water rowers have no belt to replace and no chain to oil. The full trade-off between the resistance types is here, and our water-rower picks are here. The tank is the only real chore, and it is a small one.
Straight answers
Questions people actually ask
How do you keep a water rower tank clean?
Drop a water-purification tablet into the tank every few months, following the manufacturer's guidance - this prevents algae and keeps the water clear. Top up the level occasionally so resistance stays consistent, and do a full water change only if it discolours, which is rarely more than once a year.
How often do you change the water in a water rowing machine?
A full change is rarely needed more than once a year, provided you use purification tablets every few months. Most maintenance is just the tablet and the occasional top-up. You only drain and refill if the water discolours despite the tablets.
Is a water rower high maintenance?
No. The tank is the only real upkeep - a purification tablet a few times a year and an occasional top-up. There is no belt to replace and no chain to oil. Weighed against a connected rower's monthly membership, the running cost of a water rower is negligible.
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Sources
- WaterRower Natural (Ash) - published specificationsAccessed 2026-07-24. https://www.amazon.com/dp/B0053BMWWU
- Sunny Health & Fitness Obsidian Surge Water RowerAccessed 2026-07-24. https://www.amazon.com/dp/B075MB7DM8
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