A traditional replacement toilet syphon with a dual flush function and adjustable height from 190m...A traditional replacement toilet syphon with a dual flush function and adjustable height from 190mm to 288mm (7.5" to 9.5"). It features an internal overflow and multiple flushing volumes, offering water-saving options. This syphon is designed to fit most standard toilets and comes with a 10-year warranty. The Viva Skylo AS01 syphon provides a versatile solution for your toilet cistern with easy height adjustment and a dual flushing mechanism allowing you to control water usage. It includes a 1 1/2" connection and an internal overflow mechanism.
This guide is for homeowners and plumbers seeking a reliable and water-saving replacement toilet syphon. The Viva Skylo Dual Flush Syphon AS01 offers a versatile, adjustable-height solution with a dual flush mechanism to conserve water, though proper measurement and basic plumbing knowledge are essential for optimal installation.
All features
Model Part Number
AS01
Brand
Viva Sanitary
Extended Product Information
FAQs
What is a dual flush syphon?
A dual flush syphon allows you to choose between two flushing volumes: a smaller flush for liquid waste and a larger, full flush for solid waste. This helps conserve water by using only the necessary amount for each flush.
How do I adjust the height of the Viva Skylo AS01 syphon?
The syphon features a twist-and-lock mechanism. You typically twist the upper part of the syphon to unlock, slide it to the desired height within its 190mm-288mm range, and then twist it back to lock it securely in place. Always ensure the internal overflow pipe remains functional at the chosen height.
Will this syphon fit my toilet?
The Viva Skylo AS01 is designed to fit most standard toilet cisterns with a 1 1/2" syphon connection. Its adjustable height (7.5" to 9.5" or 190mm to 288mm) further enhances its compatibility. It's recommended to measure the height of your existing syphon before purchase to ensure a good fit.
What is the warranty period for this product?
The Viva Skylo Dual Flush Syphon AS01 comes with a generous 10-year manufacturer's warranty, covering defects in materials and workmanship under normal use.
How does the internal overflow work?
The internal overflow is a pipe within the syphon that directs any excess water from the cistern directly into the toilet bowl. This prevents the cistern from overflowing onto the bathroom floor if the fill valve fails to shut off, providing a crucial safety feature.
Can I use my existing flush button or handle with this syphon?
Yes, the Viva Skylo AS01 is designed to be compatible with most existing flush buttons or levers that activate dual flush mechanisms. You will connect your existing linkage to the syphon's activation rods during installation.
How do I set the multiple flushing volumes?
The syphon typically includes adjusters on the flush mechanism that allow you to fine-tune the amount of water released for both the short and full flush. Refer to the detailed installation instructions for specific guidance on setting these volumes to achieve optimal water efficiency for your toilet.
Troubleshooting
Toilet runs continuously after flushing.
This often indicates a problem with the syphon's main seal or a fill valve issue. First, check that the syphon's main seal is clean and free of debris. Ensure the syphon is correctly seated and the retaining nut is snug. If the problem persists, check the fill valve's float level; if set too high, water will continuously flow into the overflow.
Weak or incomplete flush.
Ensure the water level in the cistern is reaching the correct height (just below the internal overflow). Check that the flush mechanism is fully engaging the syphon. The syphon height might be set too low, preventing sufficient water volume for a full flush. Adjust the syphon height upwards if needed.
Dual flush is not working; only one flush type occurs.
Inspect the connection between your flush button/handle and the syphon's dual flush activation rods. Ensure the rods are correctly attached and not obstructed. The separate activation points for the full and half flush must be freely movable.
Water is overflowing from the cistern.
While the internal overflow should prevent water from spilling onto the floor, if water is constantly running into the internal overflow, it indicates a faulty fill valve that is not shutting off. Replace or repair the fill valve, or adjust its float mechanism downwards.
Leakage from the base of the syphon.
Ensure the large retaining nut underneath the cistern is tightened securely (hand-tight plus a quarter turn with a wrench, avoid overtightening). Check that the large rubber washer (doughnut washer) between the syphon and the cistern is correctly positioned and not damaged. Replace the washer if it appears worn or cracked.
Pros and Cons
Pros
Significant water savings through dual flush and adjustable flush volumes
High compatibility with most standard toilet cisterns due to adjustable height
Enhanced safety with integrated internal overflow protection
Long-term reliability backed by a 10-year manufacturer's warranty
Designed for straightforward replacement of traditional syphons
Cons
Installation requires basic plumbing knowledge and tools
Careful measurement is crucial for proper height adjustment
May not fit highly specialized or non-standard cistern designs
Initial adjustment of flush volumes may require some trial and error
Setup, Compatibility & Care
Setup
Turn Off Water: Locate your toilet's water supply valve (usually under the cistern) and turn it off completely. Flush the toilet to empty the cistern.
Remove Old Syphon: Disconnect the flush button/handle linkage. Undo the large nut at the base of the old syphon, typically from underneath the cistern. Carefully lift out the old syphon.
Prepare New Syphon: Adjust the height of the Viva Skylo AS01 syphon to match the height of your old syphon or the required water level in your cistern. This is usually done by twisting and locking the syphon body. Ensure the internal overflow pipe is correctly oriented.
Install New Syphon: Place the new syphon into the cistern hole, ensuring the rubber washer is correctly seated underneath the cistern. Tighten the large retaining nut securely from beneath the cistern. Do not overtighten.
Connect Flush Mechanism: Attach your existing flush button or lever mechanism to the syphon's dual flush activation rod.
Restore Water & Test: Slowly turn the water supply back on. Allow the cistern to fill. Perform several flushes (both short and full) to check for leaks and proper operation. Adjust flush volumes if necessary.
Compatibility
The Viva Skylo AS01 is designed as a direct replacement for traditional syphons in most standard toilet cisterns.
It features a 1 1/2" connection at the base, which is a common standard.
The adjustable height range of 190mm to 288mm (7.5" to 9.5") makes it compatible with a broad spectrum of cistern heights. Always measure your existing syphon's height before purchase.
Care
Regular Cleaning: Periodically inspect the syphon for any mineral deposits or debris, especially around the main seal and internal overflow. A soft brush and mild descaler (if necessary) can be used.
Avoid Harsh Chemicals: Do not use abrasive cleaners or harsh chemical descalers directly on the syphon components, as these can damage plastic or rubber parts.
Check for Leaks: Routinely check for any signs of continuous running water or leaks from the syphon base, indicating a potential issue with the seal or flush mechanism.
Inspect Seals: Over time, rubber seals can degrade. If you notice persistent leaks or poor flushing, inspect the main syphon seal and replacement if worn.
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