Eurotherm 3/4" Thermostatic Shower Valve with Shut-Offs and Parts

The shower valve consists of the solid brass Valve Body, Thermostatic Cartridge, two Shut-offs, and Brass Cover. The parts within the valve have a lifespan of 15 to 20 years. Over time, wear and tear, plus the accumulation of limescale from precipitated hard water minerals in the water, cause parts to break, leak, or fail. To ensure continued safe and enjoyable use of your shower system, the manufacturer recommends servicing it about every 15+ years by replacing the Thermostatic Cartridge and two Shut-offs.

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Fastest Response Time	The Bi-Metallic cartridge has the fastest response time: ± 1 second and 1° F when fluctuation in supply pressure occurs.
Integrated Check Valves	Built-in check valves prevent cross connection
World Class	Used in the finest homes, hotels, and yachts
High Flow	Engineered to deliver the highest flow rate on the market: up to 32 gallons per minute when both top and bottom exits are open at a water pressure of 65 pounds per square inch. It can also deliver lower water flow with restriction: up to 16 gallons per minute at a water pressure of 65 pounds per square inch. Designed to run multiple exits at the same time. It is capable of single or dual exits in residential or commercial applications.
Solid Brass	Made from premium quality solid-brass components
Lifespan	10 to 20 years, depending on water quality and other factors. Typically up to about 15 years. Regular cleaning each year will extend the life of the cartridge.More ⟩
Warranty	Two years
Pioneering	Made by Eurotherm, a pioneer of thermostatic valves since 1947
🇫🇷	Made in France

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Valve Instructions

Maintenance

The world-class thermostatic cartridge is imported from France and has a warranty of 2 years.

The lifespan of the thermostatic cartridge can be 10 to 20 years, depending on water quality and other factors. It typically lasts up to about 15 years.

The manufacturer recommends regular cleaning of the thermostatic cartridge each year. The frequency depends on the using conditions and the water quality (pH, limescale, water treatment, etc.).

Lack of maintenance can significantly reduce the lifespan of a thermostatic cartridge. Regular cleaning to remove sediment, scale, or debris can extend its life.

Maintenance Checks

• To clean and descale the thermostatic cartridge, soak it in a solution of half water and half white distilled vinegar for 1 to 3 hours. Brush the filters.
• If the flow rate drops or the temperature becomes unstable, check the condition of the thermostatic cartridge.
• Clean the strainers and membrane jets of the thermostatic cartridge.
• If this is not sufficient, replace the thermostatic cartridge.

Troubleshooting

In the event of an operating problem with the thermostatic shower valve, check the following.

• Make sure hot and cold inlets are correctly connected to the marked hot and cold side of the thermostatic valve.
• If the shower valve has local shut-offs, make sure that they are fully open.
• Be sure there is sufficient water pressure; check the water pressure at the main valve in the residence.
• Check whether the screens within the thermostatic cartridge are clear of debris.
• Make sure that you have correctly calibrated the thermostatic cartridge.

Symptom	Remedy
The water does not run with the desired temperature.	If the thermostatic cartridge is less than 10 years old, clean and test it: Remove the thermostatic cartridge and soak it in a solution of half water and half white distilled vinegar for 1 to 3 hours, to remove limescale. Use an old toothbrush to clean the filters. Rinse the thermostatic cartridge and re-install it. Turn the water on to the shower, and rotate square tube fully clockwise. Slowly turn square tube fully counter-clockwise, to determine if the water temperature adjusts properly. If the water temperature does not adjust properly, and especially if the thermostatic cartridge is over 10 years old, replace the thermostatic cartridge.
The mixed water runs, but at insufficient volume.	Hot or cold water volume is insufficient. Pressure of hot water is greater than cold water pressure Filters are blocked; clean the filters.
By installation of a new thermostatic mixing valve: only hot or cold water runs.	The hot and cold water inlets are reversed. Install reverse (inverse) model of thermostatic cartridge.
The mixed water temperature follows the position of the knob but with some discrepancy.	Re-calibrate the thermostatic cartridge.
The mixed water does not come out of the thermostatic mixing valve or only in an extreme knob position.	The water supply is insufficient.
The mixed water runs by jerks and the flow is low, except for extreme temperatures.	The water volume of one of the water lines is insufficient. Check the cartridge filters and clean if necessary.

Lifespan of Thermostatic Cartridge

The lifespan of the thermostatic cartridge can be 10 to 20 years, depending on water quality and other factors. It typically lasts up to about 15 years.

The longevity of a thermostatic cartridge can be influenced by several factors:

1. Water Quality
   • Hard Water: High levels of minerals like calcium and magnesium can lead to scale buildup inside the cartridge, which can impair its function over time.
   • Chlorine and Other Chemicals: These can corrode the materials of the cartridge, especially if they are not resistant to such chemicals.
2. Frequency of Use

   Cartridges in frequently used showers or faucets will wear out faster due to the continuous mechanical action of temperature changes and water flow.

3. Temperature Fluctuations

   Extreme hot to cold water changes can stress the internal components, particularly if the cartridge is not designed for such wide temperature swings.

4. Installation Quality

   If the cartridge is not installed correctly, it might not function optimally, leading to premature wear. This includes ensuring the right size and type of cartridge is used for the specific fixture.

5. Maintenance

   Lack of maintenance can significantly reduce the lifespan of a thermostatic cartridge. Regular cleaning to remove sediment, scale, or debris can extend its life.

6. Material Quality

   Higher quality materials can last longer than less durable alternatives. The quality of the rubber seals and O-rings also plays a role in longevity.

7. Sediment and Debris

   Particles in the water supply can cause wear on moving parts or block passageways, leading to malfunction or reduced performance.

8. Environmental Factors

   Exposure to harsh chemicals, extreme temperatures, or even the climate in which the plumbing system operates can influence how long a thermostatic cartridge lasts.

To maximize the lifespan of a thermostatic cartridge, one should consider installing a water softener if hard water is an issue, regularly check and clean the cartridge or at least the screen filters, and ensure that the water temperature does not exceed the manufacturerʼs recommendations. If performance starts to degrade, it might be time to either clean or replace the cartridge, depending on its condition.