Identify Your Rowing Machine

General Identification

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The WaterRower design has evolved in four basic steps (Series I, II, III and the S4). These design changes make spare parts identification a little more difficult.

Since 1993 WaterRower has had two manufacturing facilities, one in London, England servicing the European Market and one in Rhode Island, USA, servicing the American market.

Some people will know where their rowing machine was made, however it is best to check. The easiest way to identify the country of origin of your WaterRower rowing machine is the tank level gauge sticker (on the side of the tank) or the serial number label.

The S4 WaterRower rowing machine is the same construction as the Series III but includes the S4 monitor.

The Footboard is one piece, the heel rest is adjustable through a series of holes and the foot strap is adjustable by sliding in a groove.
The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of steel.


The Monitor Backplate has two different versions, SIII V1 and SIII V2.
Version 1 (WRPC110) Housing has the RS232 port in the end of the spigot tube. Version 2 (WRPC110) has RS232 D-Connector Port on the back of the housing.

Series II WaterRower’s were manufactured in both the US and the UK (check the level gauge for the country of origin). Each location manufactured various versions of the rowing machine.

Series II- US Models

The US operation manufactured two basic designs of the rowing machine, the WaterRower Series II Model A and the WaterRower Series II Model B.

The WaterRower Series II Model A was the first redesign of the popular Series I and may be identified by the following characteristics.

  • The Footboard was a single piece and both the heel rest and the foot strap were adjustable by a series of bolt holes in the footboard.

 

Fig. 3
  • The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of wood.
  • Typically the rowing machine was fitted with a workout computer which had more advanced functionality than just measuring time. Typically it measured speed in m/s.
Fig. 4

The WaterRower Series II Model B was the model which sold widely through the Nordic Track organization and may be identified by the following characteristics.

  • The Footboard was two piece, the heel rest was fixed and the foot strap slid between the two footboard halves.
  • The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of steel (similar to Fig. 2 above).
  • Typically the rowing machine was fitted with a simple countdown timer.

Series II- UK Models

The UK operation manufactured two basic designs of the rowing machine, the WaterRower Series II Model A and the WaterRower Series II Model C.

The WaterRower Series II Model A may be identified by the following characteristics.

  • The Footboard was a single piece and both the heel rest and the foot strap were adjustable by a series of bolt holes in the footboard (similar to Fig. 3 above).
  • The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of wood.
  • Typically the rowing machine was fitted with a workout computer which had more advanced functionality than just measuring time. Typically it measured speed in m/s (similar to Fig. 4 above).

The WaterRower Series II Model C was very similar to the Model A and may be identified by the following characteristics.

  • The Footboard was a single piece and both the heel rest and the foot strap were adjustable by a series of bolt holes in the footboard (similar to Fig. 3 above).

The bottom deck (connected to the tank) was a black plastic (Rigid Urethane Foam).

Fig. 5
  • Typically the rowing machine was fitted with a Series II workout monitor though some later machines were fitted with Series III monitors (similar to Fig. 4 above).

All Series I WaterRowers were the original design. Made in the Rhode Island they are quite distinctive and may be identified by the following characteristics.

  • The serial number was located on the bracket under the footboard.
Fig. 6
  • The footboard was heart shaped, and the heel rest fixed. The footstrap was 2″ (50mm) wide and closed using Velcro.
Fig. 7
  • The seat had a cut away at its rear to give clearance for the tail bone and was upholstered.
Fig. 8
  • The forward riser had two pulleys at its top where the drive strap passed through.
Fig. 9
  • The rear spacer was cylindrical, the double bungee was attached by a Velcro strap.
Fig. 10
  • The Dolley Wheels had a central axle passing right through the machine. The dolley wheels themselves being 5″ (140mm) in diameter.

Fig. 11



		

Clutch Identification

A critical component of all WaterRower models is the (sprag-style) clutch. It is the largest of the pulleys in the main tank assembly and connected directly to the handle strap (via bolt-on connection, velcro connection, or both).

Clutch designs and materials used have changed over the years as technology and manufacturing processes have evolved. The first clutches (WaterRower series 1 & 2) were all metal, about 3″ in diameter, and comprised of a bolt-on or bolt-on and velcro, handle strap attachment.

  • Up until approximately the beginning of 2013, on series 3 and series 4 all-wood models, machines had metal clutches and handles were attached with velcro only (pictured directly below).
  • The new style Plastic Housing clutch was developed for A1/Indo-Row machines and was carried over to all S4 models (including all-wood) in 2013. It is identified most easily by the black plastic flange (or lip) on the top and bottom. It tends to retract faster than the metal clutch and this is a key feature for the upgrade.
  • The Indo-Row Studio had the bolt-on/velcro attachment in 2010 and 2011, transitioning to the newer plastic housing clutch with bolt-on handle in approximately July of 2011.
  • M1 models had the addition of the bolt/velcro from 2010, 2011 and 2012. M1 and S1 models changed over to the bolt on/plastic clutch in December 2012 through January 2013.

Serial Number Locations

The Series II WaterRowers manufactured in the US have their serial number imbedded in the level gauge sticker on the side of the tank.