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Toilet Bottom Inlet Fill Valve - RDEXP - 29cm

Toilet Bottom Inlet Fill Valve - RDEXP - 29cm

This RDEXP toilet fill valve is designed for bottom inlet cisterns with a split push button dual f...

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Rdexp White 29Cm Heigh Toilet Bottom Inlet Fill Valve Split Push Button Dual Flush Cistern Syphon

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Product Information

Full details

This RDEXP Toilet Bottom Inlet Fill Valve is designed for users with bottom inlet cisterns featuring a split push-button dual flush mechanism. It offers a durable, leak-free solution for smooth and quiet toilet operation. While providing reliable performance, users should confirm their specific cistern's water tank height compatibility before purchasing.

All features

Model Part NumberRDN104712016
BrandRDEXP

Extended Product Information

FAQs

What type of toilet cistern is this valve designed for?

This valve is specifically designed for bottom inlet cisterns that use a split push-button dual flush mechanism.

Can this valve be used with any toilet brand?

It is designed as a replacement for TOTO, KOHLER, and other brands with similar integrated side toilet water tanks, provided the dimensions and inlet type match.

What is the adjustable height range of the valve?

The valve has a base height of 29cm and is designed to fit water tanks with heights between 30cm and 35cm.

How do I adjust the water level if it's too high or too low?

The water level is typically adjusted by repositioning the float mechanism on the vertical rod. Refer to the installation guide for specific adjustment steps.

Is this valve suitable for high-pressure water systems?

Yes, the valve is designed for high pressure resistance, ensuring it functions reliably under typical household water pressures.

What are the dimensions of the sealing gasket?

The gasket has an outer diameter of 85mm (3.35 inches).

Does this valve come with a warranty?

Please refer to the product packaging or retailer information for specific warranty details, as warranty terms can vary.

Troubleshooting

Toilet cistern does not fill

Ensure the water supply is turned on and the shut-off valve is fully open. Check if the fill valve inlet is clear of debris.

Cistern overfills or water runs continuously

Verify that the float is set to the correct height and is not obstructed. Check the silicone gasket for damage or debris, and ensure it creates a tight seal.

Slow filling of the cistern

Clean the fill valve inlet and check the water supply pressure. Ensure the water tank height is within the 30-35cm range for optimal performance.

Valve makes excessive noise during filling

Ensure the valve is securely installed and that the water pressure is not excessively high. The two-piece float design generally ensures quiet operation.

Pros and Cons

Pros

  • Durable ABS plastic and silicone gasket ensure longevity.
  • Designed for quiet and smooth toilet operation.
  • Adjustable height accommodates a range of tank sizes.
  • Compatible with popular toilet brands.
  • Easy to install for most DIY users.
  • Efficient dual flush mechanism saves water.

Cons

  • Requires a bottom inlet cistern.
  • Specific water tank height (30-35cm) is necessary for optimal fit.
  • Dual flush functionality might not be compatible with older single-flush systems.
  • Installation requires basic plumbing knowledge.

Setup, Compatibility & Care

Setup:

  1. Turn off water supply: Locate the shut-off valve behind the toilet and turn it clockwise.
  2. Flush the toilet: Empty the cistern completely.
  3. Remove old valve: Disconnect the water supply line and detach the old fill valve from the cistern.
  4. Install new valve: Insert the RDEXP fill valve into the bottom inlet, ensuring the gasket is properly seated. Adjust the height if necessary.
  5. Connect water line: Reconnect the water supply line to the new valve.
  6. Turn on water: Slowly turn the shut-off valve counter-clockwise and check for leaks.
  7. Test flush: Flush the toilet to ensure the valve fills the cistern correctly and shuts off at the appropriate level.

Compatibility:

  • Cistern Inlet: Must be a *bottom inlet* type.
  • Flush Mechanism: Designed for *split push-button dual flush* systems.
  • Water Tank Height: Suitable for tanks measuring 30cm to 35cm.
  • Drainage Pipe Diameter: Compatible with pipes from 60mm to 78mm.
  • Replacement: Can replace valves from TOTO, KOHLER, and similar integrated side toilet water tanks.

Care:

  • Periodically check the valve for any visible debris or mineral buildup.
  • Clean the silicone gasket gently with a damp cloth if necessary. Avoid harsh chemicals.
  • Ensure the water supply is clean to prevent sediment from clogging the valve mechanism.

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