What is considered by many to be the most satisfactory closet yet designed, is that of the siphon-jet type shown in Fig. 103. The flushing action of this closet is entirely different from that of the others described. The flushing water enters at A and fills the rim B. Part of the water washes the sides of the bowl, while the remainder flows through the jet C, and is discharged directly into the outlet. The ejected water enters the outlet D, which, as soon as it fills, acts as a siphon to draw the water into the soil pipe. This closet is most positive in its action, since the discharge is made by the siphon and also receives the additional momentum due to the water flowing through the jet. Its action is attended with but little noise.