Sanitary wares just billowed into the sub-type with Siphon

Only these two common, billowed into the style is the direct use of hydraulic Chongdiao dirt, and Siphon siphon principle is the use of sewers will be dirt inhalation, so that the general comparison of Siphon water, but if the poor quality of the Block - Flushing will not clean. . . Therefore, if the buy cheap, then buy billowed into the style, if a good buy point, then buy Siphon.

Now the latest is a vacuum. . . Is the type of aircraft used, is the provincial water, Chong's very clean, however. . . A high price