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Grey tank issue

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castore357

Active member
I have a valor 36v11. I'm having an issue with my grey tank. Much gurgling when valves are closed. Water goes down slow. Tank is far from full. Seems to me, it's a vent issue. Can anyone direct me to the location of the grey water vent? Ty
 
BryanValRox

BryanValRox

Elite Member
castore357 said:
I have a valor 36v11. I'm having an issue with my grey tank. Much gurgling when valves are closed. Water goes down slow. Tank is far from full. Seems to me, it's a vent issue. Can anyone direct me to the location of the grey water vent? Ty
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Sorry, can’t say for sure on your model, but it might be just as easy to get up on the roof and start your investigation.

You likely only have 2 or 3 vent caps to remove and check. You could have someone try to fill or empty the Gray tank and listen to see if you can detect anything obvious.
 
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Chaseweston

Well-known member
If it is the kitchen sink, it may not vent the stack to the roof. It likely has an AAV under the sink. They use a crappy one from the factory. Remove and replace with an Oatey or Studor mini vent from a box store. Simple screw off, screw on. Still, check the roof vents as well because the under sink AAV will allow air to be pulled IN to let the flow go down the stack, but the roof vents need to let air OUT of the tank itself to operate smoothly. you either have a vacuum lock on the way down in the stack (AAV), or vacuum lock in the tank from air OUT (Roof Vent). Good Luck!
 
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