GmaTessa
Jun 29, 2016Explorer
Sewer smell in trailer and under kitchen sink
We have a new to us (2014) travel trailer and have had it out 3 times so far this year. It's a smaller trailer (22 ft.) and therefore has a small black water holding tank (I believe 26 gallon). We are usually out for 6 days and use a portable waste tank to dump after 3 days. Afterwards, we notice a distinct sewer smell in the trailer, and seems to be worse when we open the cabinet doors under the kitchen sink. NOTE: There is no smell in the bathroom and we use drop in tank treatments when we first set up on arrival at the campground and again after dumping mid-trip. We have been on trips in April when weather was cooler and in May and June when it's been hotter so thinking weather is not a factor. Anyone have a clue what might be causing the smell to come into the trailer and under the sink?