Gray tank problem
For the last couple of months I am having an issue with the gray tank on the camper. When dumping I hear gurgling in all the sinks and I believe I am siphoning the water out of the p traps. I also hav...
Forum Discussion
Your new "anti siphon devices" are air admittance valves. If you are getting an odor under the sinks, the new valves may be defective. Here's how I'd approach it.
1. Fill the gray tank up enough to run a test. 2. Make sure you run enough water down the sink drains to verify that the p-trap is full. 3. Drain the gray tank. 4. Loosen the nut on the p-trap and verify that the trap still has water in it.
If the trap has been drained, replace the AAV. If the trap has water in it, you still have an odor under the sink, remove the AAV and put some thread sealing tape on the threads of the AAV to make sure gasses aren't bypassing the AAV through the threads of the device. You might also try using a gray water odor controlling additive that you can purchase in most RV shops such as Camping World.
If all else fails, try replacing the AAVs with another brand.
1. Fill the gray tank up enough to run a test. 2. Make sure you run enough water down the sink drains to verify that the p-trap is full. 3. Drain the gray tank. 4. Loosen the nut on the p-trap and verify that the trap still has water in it.
If the trap has been drained, replace the AAV. If the trap has water in it, you still have an odor under the sink, remove the AAV and put some thread sealing tape on the threads of the AAV to make sure gasses aren't bypassing the AAV through the threads of the device. You might also try using a gray water odor controlling additive that you can purchase in most RV shops such as Camping World.
If all else fails, try replacing the AAVs with another brand.
