Drain smell.
We just picked up our first new-to-us fifth wheel and noticed a drain stench when ever we turn on the water. (it's not the water)The RV had been vacant for over a year. Do you leave the grey tank v...
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We keep our gray tank drain open all the time due to the fact that we use our clothes washer and dish washer a lot and along with showers, the tank will fill quickly (65 gal tank).
You are probably experiencing a bad Air Admittance Valve (AAV) located under your sink. Look for a small (two or three inches) device located on top of the drain piping. It screws off and you can find a replacement at home depot or lowes.
And yes, you are correct about leaving the black tank closed until 2/3rd or 3/4th full. If you know how long it takes to fill the gray, you might want to close its valve so that when the black tank needs draining, you can use the gray water afterwards to flush out the stinky slinky. Otherwise, the hose will still have lots of "stuff" left in it. Not good.
good luck
Ron
You are probably experiencing a bad Air Admittance Valve (AAV) located under your sink. Look for a small (two or three inches) device located on top of the drain piping. It screws off and you can find a replacement at home depot or lowes.
And yes, you are correct about leaving the black tank closed until 2/3rd or 3/4th full. If you know how long it takes to fill the gray, you might want to close its valve so that when the black tank needs draining, you can use the gray water afterwards to flush out the stinky slinky. Otherwise, the hose will still have lots of "stuff" left in it. Not good.
good luck
Ron
