Since you want to install it to vent the toilet, the best solution is to attach the system to the toilet drain. Keep in mind that you need to install Air Admittance Valve at least 4 inches (10 cm) higher than a drain line.Click to see full answer. Keeping this in view, can you use a sure vent for a toilet?Studor, a brand name air admittance valve, can solve venting problems when open air venting pipes will not work. Studor vents allow air to enter the pipes while keeping sewer gasses or odor from escaping. After a toilet flushes the increased water flowing down the drain creates a negative pressure.Furthermore, are air admittance valves legal? AAVs are sometimes referred to as “cheater” valves, as less plumbing pipe needs to be installed. 9.2, which covers AAVs states that, “air admittance valves shall only be used to vent fixtures in buildings undergoing renovation, and installations where connection to a vent may not be practical”. Also, how far can a vent be from a toilet? Tie the waste line from the new toilet directly into the stack if the toilet is within six feet of the stack and the waste line is 3 inches in diameter. If the waste line is 4 inches in diameter, the toilet can be as far as 10 feet from the stack.What happens if a toilet is not vented?If there is not enough air pressure from the vent in the drain pipes, this water can be lost. Empty toilet bowls — If toilets do not refill after flushing, or if the level of water in the bowl or tank rises or falls suddenly, it could indicate venting problems in the drains.
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