The biggest problem with using a septic system is that excess amounts of waste water could cause an overflow in the system's tank. While many homeowners address this problem by flushing their toilets less and not doing anything less than a full load of dishes or laundry, most other homeowners would prefer to flush their toilets after every use. If you are one of the latter, then there are ways you can flush your toilet without the use of more water.
Whether you install a special device in your toilet to force air through the trap and through the pipes to the septic tank or you use an "air plunger," you can use air to flush your toilet. This method takes the solid waste and the waste water/urine that is already in your toilet and pushes it all the way down. The device in the toilet helps the toilet keep some water for the next "flush," but every third flush has to be with the toilet's handle and water tank. At the very least, you can save half to a third of all toilet tank water that could have ended up in the septic tank and require you to pump out the septic tank more frequently. A plumber can install the toilet device and/or show you how to use the "air plunger."
Super Low-Flow, High Pressure Toilets
You can also ask a plumber to remove your old standard toilets and replace them with super low-flow, high pressure toilets. These toilets use minimal amounts of water with intensely high air pressure. They are akin to the "air flush" devices you can buy and use, but the toilets work on slightly different mechanisms. Additionally, these low-flow, high pressure toilets allow you to flush waste water and replenish the water in the bowl with every flush without sending gallons upon gallons of water to the septic tank.
Ask Your Plumber for More Ideas
As your plumber works to install different toilets or air flush devices, or show you how to use air plungers, ask him or her about any other flushing options that would work. The plumber knows about all new and old methods for flushing as they relate to the well-being of a septic tank. The plumber knows when other, newer technologies arrive on the market that you may find useful and applicable to your particular situation and your needs.