Question about Kohler Model 7202: Drain For Purist® Baths - Polished Chrome
This is a Kohler bathtub about 24 years old, it has started to leak when the drain plug is activated and floods the ceiling below. When you just run the water there is no leak. The plug feature on the tub is not used very much.
This usually is caused by a detiorated O ring that compresses to make a watertight seal at the transistion points from them drain shoe and overflow tube to the trap adapter. However it may be the trap adapter as well. Either way the best solution is to access the tub waste from the wall behind the tub drain and replace the necessary parts. Your issue is showing up because the gallons per minute/hour rate that the tub drains is far greater than the tub valve is allowed to fill the tub. This causes a greater volume of water to fill the tub waste and as such the backpessure is greater as the entire volume of water in the trap weir must be evacuated as opposed to when the tub is not plugged and the valve is ran requiring the trap weir to evacuate gradually. Some tub wates are made of metal and may have developed holes in them but they generally form along the pathway the water uses to drain. Unfortunately the only real solution is gain access to the tub wate and replace the defective part. Thanks for using Fix Ya.
Posted on Mar 10, 2009
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Posted on Jan 02, 2017
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