An example vacuum-assisted toilet includes a toilet bowl including an outlet. The outlet of the toilet bowl is fluidly coupled to a first flush valve, for example, using a first pipe. The first flush valve is fluidly coupled to a second flush valve that is positioned downstream from the first flush valve. For example, the first flush valve may be fluidly coupled to the second flush valve using a second pipe. The second flush valve is fluidly coupled to a vacuum source. The vacuum source may include, for example, a holding tank having a vacuum pressure therein, a vacuum pump, or any other suitable vacuum source.

A flush toilet includes a toilet main body and a tank device. The tank device includes a storage tank, and a water supply unit configured to supply flush water to the storage tank. The storage tank includes a first upper surface including a water passage port through which the flush water supplied from the water supply unit flows into the storage tank, a second upper surface that is lower than the first upper surface, and a third upper surface that is provided between the first upper surface and the second upper surface and that is lower than the second upper surface. The storage tank further includes an air vent unit that is provided at the second upper surface and that is configured to purge air from the storage tank.

Disclosed is a flush toilet including: a bowl portion having a waste-receiving surface and a rim; a drain passage; a rim spout section provided in the rim; and a water-conducting passage configured to supply the flush water to the rim spout section. The bowl portion has a front region and a rear region, and the rim spout section includes: a rim water passage formed inside the rim; and the rim spout port formed at a downstream end of the rim water passage. The rim water passage is provided to extend from either one of right and left parts of the rim to the remaining one of the right and left parts of the rim, via a front end of the rim. Further, the rim water passage has, in the front region of the bowl portion, a cross-sectional area constant zone.

Disclosed is a flush toilet including: a bowl portion having a waste-receiving surface and a rim; a drain passage; a rim spout section provided in the rim; and a water-conducting passage configured to supply the flush water to the rim spout section. The bowl portion has a front region and a rear region, and the rim spout section includes: a rim water passage formed inside the rim; and the rim spout port formed at a downstream end of the rim water passage. The rim water passage is provided to extend from either one of right and left parts of the rim to the remaining one of the right and left parts of the rim, via a front end of the rim. Further, the rim water passage has, in the front region of the bowl portion, a cross-sectional area constant zone.

Disclosed is a flush toilet which comprises: a bowl portion having a waste-receiving surface and a rim provided along an upper edge of the waste-receiving surface; a drain trap conduit connected to the bowl portion to drain waste therethrough; a rim spout section including a rim spout port provided in a part of the rim located in a front region of the bowl portion for spouting the flush water, and a rim water-conducting passage provided to conduct flush water to the rim spout port; and a first water-conducting hose for supplying the flush water to the rim water-conducting passage located in the front region of the bowl portion, via beneath the waste-receiving surface, wherein the first water-conducting hose is configured to enable flush water to remain thereinside during stop of supply of the flush water.

Disclosed is a flush toilet which comprises: a bowl portion having a waste-receiving surface and a rim provided along an upper edge of the waste-receiving surface; a drain trap conduit connected to the bowl portion to drain waste therethrough; a rim spout section including a rim spout port provided in a part of the rim located in a front region of the bowl portion for spouting the flush water, and a rim water-conducting passage provided to conduct flush water to the rim spout port; and a first water-conducting hose for supplying the flush water to the rim water-conducting passage located in the front region of the bowl portion, via beneath the waste-receiving surface, wherein the first water-conducting hose is configured to enable flush water to remain thereinside during stop of supply of the flush water.

Embodiments of the present disclosure relate generally to systems and methods for reducing sound in vacuum toilets. In one example, multiple rinse injections are used at appropriately timed intervals in order to reduce the vacuum flush sound levels.

Embodiments of the present disclosure relate generally to systems and methods for reducing sound in vacuum toilets. In one example, multiple rinse injections are used at appropriately timed intervals in order to reduce the vacuum flush sound levels.

The disclosure includes a water sounds noise maker and wall mount for inducing urination. The noise maker is battery powered, and mounts to the wall for convenience or may be worn or mounted by other means. Battery power sources include but are not limited to power sources which are rechargeable, plug-in and solar powered options. The invention contains three settings for duration of sounds, three options for sounds, and volume control. The disclosure manages inducing urination for clients by recording and playing various water sounds. Various prerecorded water noises from sources outside a housing of the disclosure, are also reproduced to induce urination.

The disclosure includes a water sounds noise maker and wall mount for inducing urination. The noise maker is battery powered, and mounts to the wall for convenience or may be worn or mounted by other means. Battery power sources include but are not limited to power sources which are rechargeable, plug-in and solar powered options. The invention contains three settings for duration of sounds, three options for sounds, and volume control. The disclosure manages inducing urination for clients by recording and playing various water sounds. Various prerecorded water noises from sources outside a housing of the disclosure, are also reproduced to induce urination.