If you notice fixtures in your home seeping water, when your washing machine is in use or draining, then there is a problem.
Sometimes, the source of the trouble is the septic tank. The tank could be clogged, or there could be a break in the sewer or main pipe.
Or, your washing machine line could be too close to the sud-rinse zone.
Building code enforcements include the placement and distance of pipes. If the lines are too close, they may become crossed.
A visit from a professional plumber will locate the problem and solve it quickly.