Leaking PVC Soil Pipe

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Old 12-17-12, 09:05 PM
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Leaking PVC Soil Pipe

The PVC soil pipe under our bathroom has developed a slow leak. This pipe is inaccessible as it runs under a platform that lifts the bathroom above the concrete floor of our enclosed garage. It may be a crack in the pipe (unlikely) or a connection between the tub and the main pipe (more likely). Is there a liquid sealant that I can pour into the tub drain that will seal this obviously small opening?
 
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Old 12-17-12, 09:15 PM
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No. IMO you will need to find the source and repair properly. There is no quick fix when it comes to plumbing.
 
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Old 12-18-12, 05:45 AM
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I know it sounds bad but I often find it quickest, easiest and pretty inexpensive to cut a hole in the bathroom floor for access. If the bath has sheet vinyl flooring it can sometimes be carefully pulled up and reused or it's an opportunity for a mild makeover with just the cost of new flooring.

I generally make the hole in the center of the room. First I make a small hole so I can find where the joists are. Then I measure & mark a square/rectangular hole where two sides end up on the center line of the joists. Cut out the flooring you marked and now you can work. When done with the plumbing patch pieces of subflooring are pretty easily put in place to seal the hole since you have the half width of the joists for support & nailing.
 
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