We have several houses that we lease. On one of them, the tenant called and said the kitchen sink wasn't draining. Fine, used a 25 foot snake, found an obstruction at about 15-18 feet in, after several tries got it to drain properly. BUT, in the process, based on what we were seeing, we THINK that the only venting that is going on is, say you're using on side of the sink, the venting is being done from the other side of the sink. We think there might have been an obstruction between the garbage disposal and the other side, which we were able to clear out by running the garbage disposal. Possibly the vibration cleared it. In other words there was more going on than just the obstruction downstream, but not sure what.
Anyways, keeping in mind that this install is on an island, and although we have no way of knowing for sure, that it was probably done when the house was built, how would the thing be vented? Inside the wall? Vented as above (which I doubt since that is definitely not an idiot proof way to do it)? Or could the vent be obstructed in some way? I mean, the sink works now, from both sides, but we have a sneaking suspicion that it isn't "right". I don't want to call a plumber if the problem might be simple and easily accessible.
Anyways, keeping in mind that this install is on an island, and although we have no way of knowing for sure, that it was probably done when the house was built, how would the thing be vented? Inside the wall? Vented as above (which I doubt since that is definitely not an idiot proof way to do it)? Or could the vent be obstructed in some way? I mean, the sink works now, from both sides, but we have a sneaking suspicion that it isn't "right". I don't want to call a plumber if the problem might be simple and easily accessible.