When something is nearly invisible, like your septic system, it can be easy to neglect it, either because you forget it exists or because it seems easier to just let it do its thing under the ground on its own.
However, regular septic cleaning has some clear and compelling benefits that anyone, whether they’re concerned about maintaining their health, their property value, their pocketbook, or the nearby environment, would likely be interested in.
First, and most clear-cut: regular septic cleaning jobs are much cheaper than paying to replace your whole septic system because something failed due to neglect.
They are also, similarly, better for your property value. If you ever do decide to sell your property, buyers will be happier if they are inheriting a well-maintained septic system than a neglected one that, for all they know, might collapse at any time, and will almost certainly need a paid inspection before they buy.
However, regular septic cleaning also helps protect things that are invaluable as well: your health and the local environment. A well-functioning septic system will filter out any pollutants and contaminants before letting the water back out into the environment. However, if it is not regularly maintained and something begins to break down, those contaminants will be released, untreated, into the groundwater. This can cause smelly puddles in your yard, which can have adverse effects on your health as well as local animal and plant populations. Contaminated water can seep into local streams, where it can make animals ill and cause infections in any humans using the water for fishing, swimming, drinking, or otherwise.
When in doubt, a regularly cleaned septic system is always better than a neglected one.