The fuel is supposed to be drained into something like a bottle. (Clear receptical) where you perform certain checks on it. Draining it onto the ground doesn't cover the Function. You should always check the drain has sealed as it can be a fire hazard as well as fuel loss. You can't rule out lumps of solid stuff being involved either, as well as WATER. Often a suitable length of Alu Pipe is used to open the drain valve and conduct the fuel into the vessel more satisfactorily. Nev