1/8th of an inch per foot
Yes,the toilet is part of the plumbing system.
To vent off odors emanating from the septic/sewer system and to allow the toilet to flush correctly and the other drains to empty correctly.
Toilet / piping to and from the toilet and sinks and tubs and showers
If you really mean it flushes but the water does not run away, then the septic tank is plugged.
Drain line clogged. Toilet itself may be problem.
The drain is plugged between the tub and the sewer or septic or in the case of the septic system, the tank may be full. The toilet had to go somewhere and the tub was available.
Performing routine septic tank maintenance will prevent your septic tank from backing up and flooding your yard. If a septic tank backup happens, it could cost you thousands of dollars to fix. Use a septic tank kit that you can pour down the toilet once a month. It will contain the necessary enzymes needed to breakdown solid waste material inside the septic tank, keeping fluid flowing freely through the drainpipe. Avoid disposing of materials such as Q-tips, tampons or excessive toilet paper, as these items will clog your system and are hard to break down. Consider using septic system safe toilet paper.
An RV toilet is designed to be mounted over a holding tank. They use almost no water which at first might sound appealing, but unless you have a septic tank under your bathroom it would be bad news for home installation. Unless modified, an RV toilet would not be able to get the solid waste to your home septic system. A home toilet uses the force of the water to move the solid waste to your septic tank. Look for a low flush toilet or a composting toilet instead.
Because Septic Systems are designed with specific water use limitations, the BEST toilet choice on a septic system is always a toilet that uses a minimum amount of water AND still flushes well. For a 'gravity' actuated toilet, I like the high-end Toto toilets. Their engineering by far surpasses anything I've seen thus far domestic. And (even though some of my peers hate pressure-assist toilets) I've found the Gerber pressure assist toilet very reliable and it's 1.28gpf. If used thoughtfully, I have not seen that the low-gallon pressure assist has had an adverse impact on the overall drain system, (by causing clogging due to low flow). Bruce Davis, Sr. Journeyman Plumber, Day & Nite Plumbing & Heating, Inc. Lynnwood, WA. Bruce@dayandnite.net
If you are on a septic system, it is plugged.
You have a main line blockage and or a full septic tank if you have a septic system. You need to have either your sewer line roto rootered and or your septic tank pumped if on a septic system.
Not generally affect it badly, however depending where the leak is , it could rot your bathroom floor.