Drainage problems are notorious in trailer parks. It doesn't take a rocket scientist to figure out why.
With all the beer, beans and beef jerky ingested in the community, it's a wonder there aren't more plumbing problems. Most trailers now come from the factory with smaller "water conserving" toilets. Two powerful ingredients in septic disasters.
Double flushes are the best you can hope for, while marathon flushing episodes are quite frequent.
During the warmer months the problem is exacerbated.
Young rutters spend hours washing vehicles on front lawns. The aim has more to do with attracting the attention of scantily clad females than actually cleaning the car. If they're able to entice said scantily clad female, it can turn into an all day event. Both of them will be soaked to the bone, but the vehicle rarely gets the dust sprayed off the roof. More often than not, the hose is dropped in the mud and forgotten when the couple gets in the car and fog up the windows.
To keep cool, children play with sprinklers or make homemade Slip & Slides with tarps or contractor trash bags and a garden hose. They will play until their toes are pruny or someone gets caught peeing on the plastic.
Retired men water pitiful lawns, with dreams of a private green to practice putting in. They've been told it's better to water in the early morning, but no "know-it-all" is going to tell them what to do. Advanced years, hearty meal and pure boredom get the better of them and they forget to turn the water off when they wake up and realize it's time to go to bed.
Their wives insist the trailer be power washed. The hose leaks as much on the lawn as the nozzle directs toward the home. While he's at it, she has him get both front and back decks as well.
All in all, summers can be very squishy in a trailer park.