The drain hose most commonly leaks from the connection between the pump and the back of the washer.
Bosch pressure washer wand leaking.
Once you ve inserted the o ring inside the pressure washer wand use your finger to make sure that it is seated well in the recess of the nozzle.
Power washer handle gun pa66 30gf this handle was leaking so i dismantled it and replaced the brittle hard o rings spurlock bob spurloc.
Step 2 use a 2 0 mm flathead screwdriver or ice pick to stick and remove the o ring from the quick connect nozzle at the end of a gun wand or lance.
If the drain hose is leaking replace it.
If the thermal release valves seal is compromised it may continuously leak water and cause the washer to lose pressure.
Inspect the drain hose for leaks.
Otherwise there will still be a leak.
Place the pressure washer gun wand or lance into a tabletop vise grip so that you have easy access to the quick connect nozzle at the end of the wand.
Ainst the wall and form a leak.
Most power washers are equipped with a thermal release valve at the bottom of the pump system which is designed to expel water from the pump system when it becomes too hot.