Water valve moduleThetford 31705 · Catalog 50037Replacement water module used in Aqua-Magic V and VI toilets. Identify it at diagram position 2.
View this replacement partThetford Aqua-Magic V RV Toilet Parts & Exploded Diagram
The Thetford Aqua-Magic V is a fresh-water RV toilet sold in high- and low-profile, foot-pedal and hand-flush versions. Its water module, waste-blade seal, pedal cable and flush linkage are separate service parts. Identify the toilet model and the component you need using the factory drawing below.
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Thetford Aqua-Magic V exploded parts diagram
The factory drawing shows the seat, water module, flush linkage, pedal, cable, blade seal and mounting hardware. Use the numbered positions to find the corresponding part in the table below. The drawing covers both high and low profiles; pedal-only components do not apply to hand-flush versions.
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View the numbered parts drawing here
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Factory part numbers
| No. | Thetford part | Component |
|---|---|---|
| 1 | 31703 / 31704 | Seat and cover, white / parchment |
| 2 | 31705 | Water module |
| 3 | 31738 | Flush tube and nozzle assembly |
| 4 | 36528 | Water module link |
| 5 | 31709 / 31710 | Flush pedal, white / parchment (pedal models only) |
| 6 | 31711 | Foot cable (pedal models only) |
| 7 | 12524 | Closet bolt kit |
| 8 | 33226 | White hand sprayer (if equipped) |
| 9 | 31708 | Bowl blade seal |
| 10 | 31713 / 31724 | Bolt caps, white / parchment |
| 11 | 28971 / 28972 | Closet bolt kits with caps, white / parchment |
| — | 33239 | Closet flange seal (not pictured) |
The diagram uses original Thetford service numbers. Some store listings use updated catalog numbers: 50037 (31705), 50038 (31708), 50353 (31711), 50246 (36528) and 50372 (33226).
Water keeps running or the bowl will not fill
The 31705 water module controls water flow when the toilet flushes. The 36528 valve link operates that module through the flush mechanism. A worn module and a damaged link are different repairs: check whether the valve is leaking or the link has stopped moving it correctly.
The toilet bowl does not hold water
The 31708 blade seal sits at the waste opening under the bowl. If the toilet loses standing water, inspect the seal and blade for damage or debris. This is different from the 33239 closet flange seal used where the toilet attaches to the floor.
Foot pedal not opening the flush blade
The 31711 foot cable connects the pedal and flush mechanism on the pedal-flush version. Hand-flush toilets do not use the same pedal cable. Check the cable routing and pedal movement before replacing it; the separate water valve link is not the cable.
Hand sprayer and mounting hardware
The 33226 white hand-sprayer kit serves compatible Aqua-Magic V toilets with a hand-spray connection. The listed kit includes the hose and water-saving sprayer; check your existing plumbing because mounting hardware and a tee fitting are not included in that listing.
If you are removing the toilet, identify the 12524 closet bolt kit and 33239 floor-flange seal separately. Mounting bolts alone do not necessarily include a new floor seal. Match the original toilet base and flange before fitting replacement hardware.
Compare other Thetford toilet models
The Aqua-Magic V is not the same toilet as the Aqua-Magic VI, Style II, Style Plus or Bravura. Some water-valve and seal parts may be shared, but seat, pedal and body components should be selected by the exact toilet model. See the Aqua-Magic VI parts diagram or Aqua-Magic Style II guide if that is the name on your toilet.
Turn off the fresh-water supply and release line pressure before servicing the toilet. Clean and disinfect the work area, refit seals and connections according to Thetford's instructions, and test for leaks after restoring water.
Shop Aqua-Magic V replacement parts by photo
Water valve moduleThetford 31705 · Catalog 50037
Waste-blade sealThetford 31708 · Catalog 50038Sealing ring beneath the toilet bowl, shown at diagram position 9.
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Foot-flush pedal cableThetford 31711 · Catalog 50353Links the foot pedal to the flushing mechanism; for pedal-flush toilets only, diagram position 6.
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Water valve linkThetford 36528 · Catalog 50246Small linkage between the flush mechanism and water module, at diagram position 4.
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White hand-sprayer kitThetford 33226 · Catalog 50372Optional hand-spray hose and sprayer for matching Aqua-Magic V installations; diagram position 8.
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