The provided reference describes a somewhat unusual method: adding water to the toilet bowl to trigger a siphon and drain the toilet. However, this method is not typical and may not be the most effective. Here's a breakdown of how toilets usually drain and a more practical approach to intentionally draining a toilet:
Understanding How Toilets Normally Drain
Toilets drain through a siphon action. When you flush, water rushes into the bowl, filling the S-shaped trapway. Once the water level reaches a certain point, it creates a siphon that pulls the water and waste out of the bowl and into the drain.
Methods for Intentionally Draining a Toilet
There are a few reasons you might want to drain a toilet: repairs, cleaning, or preventing freezing in a vacant property. Here's a common and effective method:
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Turn off the Water Supply: Locate the shut-off valve behind the toilet (usually near the floor). Turn it clockwise until it's completely closed. This prevents the tank from refilling.
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Flush the Toilet: Flush the toilet to remove as much water from the bowl as possible. The tank will not refill due to the shut-off valve.
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Remove Remaining Water from the Bowl:
- Using a Plunger: A plunger can sometimes push remaining water down the drain.
- Using a Wet/Dry Vacuum: A wet/dry vacuum is an efficient way to remove the remaining water.
- Using a Sponge and Bucket: For smaller amounts of water, use a sponge to soak up the water and wring it into a bucket.
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Remove Water from the Tank (Optional): If you need to drain the tank as well (for example, for specific repairs), disconnect the fill valve and flush mechanism. Use a sponge and bucket or a small container to scoop out the water.
Regarding the "Adding Water" Method:
The reference snippet describes adding water to the bowl, starting slowly and then increasing the flow, to supposedly initiate the siphon. While adding water can sometimes encourage a partial drain if the existing water level is already close to the siphon point, it's not a reliable or common practice. It's also not well-explained in the reference.
Important Considerations:
- Safety: Wear gloves when working with toilet water.
- Cleanliness: Have cleaning supplies handy to wipe up any spills.
In summary, the most effective way to drain a toilet involves turning off the water supply, flushing the toilet, and then removing any remaining water using a plunger, wet/dry vacuum, or sponge. The "adding water" method is less conventional and potentially less reliable.
