why does the water level in the toilet drop when its windy

When the wind blows really hard above the opening of the pipe, it creates rising air inside the pipe. So, the air tries to rise out of the pipe as a result of strong wind above it. That causes the water level in the toilet to drop slightly.

Full Answer

Why does the water in my Toilet Bowl drop when it’s Windy?

Jun 15, 2021 · When the water level in your toilet drops, the vent stack is likely the culprit. The outside air flows directly on top of the highest opening of the vent stack, so when there is a storm (or powerful winds), the winds can blow through this …

What causes a toilet vent stack to drop water?

Apr 12, 2020 · When the wind blows really hard above the opening of the pipe, it creates rising air inside the pipe. So, the air tries to rise out of the pipe as a result of strong wind above it. That causes the water level in the toilet to drop slightly. As the gust subsides, the water level rises back to normal again.

Why does my toilet leak when there is no wind?

May 02, 2012 · So, the air tries to rise out of the pipe as a result of strong wind above it. That causes the water level in the toilet to drop slightly. As the gust subsides, the water level rises back to normal again. This continual ebb and flow of wind above the vent pipe makes the water in your toilet jostle. Watch the video with this story for more.

What happens when water pressure decreases in a toilet?

Wind blowing and gusting by the sour gas vent on the roof can create a mild suction changing the pressure on the “sour side” of the P traps or water traps. If it’s gusty it can make the water level “wave” in your toilet bowl. Image from: Hurricane Gonzalo Sucked the Water Out of People's Toilets in Bermuda.

Why is there less water in the toilet bowl when its windy?

Why does the water level in my toilet keep dropping?

Why does my toilet water drop?

A common reason for a falling water level in a toilet bowl is a clogged vent. The water passing through the pipes creates a vacuum that pulls water into the drain from the bowl. Other reasons for dropping water levels include improperly installed drains and hairline cracks in the porcelain. Drain systems move wastewater with gravity.

Why does my toilet have a hairline crack?

While some of these cracks allow the water to leak from the fixture onto the floor, others affect the toilet by allowing water to leak directly into the drain. If the vent is clear and the line slopes correctly , a porcelain crack is the likely cause of losing water in a toilet bowl.

How does a drain system work?

Drain systems move wastewater with gravity. Vents extend from the drainpipes through the walls and ceiling of the home to allow air to help gravity push the water through the pipes. Animal nests or other debris sometimes clog the vents, decreasing or stopping the flow of air.

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