Gray tank gurgling noises
Started to post this in the motorhome section but figured I would get better feedback in general from the plumbing group.
My AS motorhome has a 70 gallon gray water tank that is connected to the shower, kitchen, and bath sink all on the left side of the rig. On the right side I have a factory installed washer/dryer combo with standard water supply, drain for the washer and a vent pipe that terminates about 5" above the drain line and does not vent to the exterior.
As with most, my tank indicators are not very accurate but when ever water starts showing up in the shower, its time to pull the plug. My problem is with the gurgling sounds coming from the washer closet as the tank gets about 75% full or more. Some say this is normal. Some say its a better indicator than the lights. Overall just wondering if anyone has had this past experience with negative results.