Maintenance
The EPA recommends that property owners have their septic tank pumped every three to five years. A licensed plumber can pump out the tank without having to remove it from the ground. According to the EPA, "If the bottom of the scum layer is within six inches of the bottom of the [tank] outlet or if the top of the sludge layer is within 12 inches of the outlet, your tank needs to be pumped."
Milan and Son Plumbing charges $300-$500 to pump a septic tank.
Lift station
In some cases, the house or septic tank is lower than the drain field and a lift station is required. A lift station is a type of pump that kicks on when the waste in the tank reaches a set level. This mechanism ensures that wastewater continues to flow out of the tank and into the drain field, keeping the operating system working properly — regardless of gravity.
"We see the need for more of these in the Miami area, where the homes are lower in elevation than their backyards," say the experts at Milan and Son Plumbing. The company charges an additional $3,000-$5,000 to install a lift station. Alternative septic systems
For steep sites, extremely rocky ground or bad soil, alternative systems work well. These include aerobic septic systems, mound septic systems, raised-bed septic systems and others. Depending on the location and type of system, costs may be higher or lower than the average septic system installation or replacement.
How septic tanks work
A properly installed and well-maintained septic system keeps you, your family and your neighboring community safe. When a septic system fails, harmful — even dangerous — disease transmission can occur as contaminated water spreads through the soil and waterways. Understanding how your newly installed septic tank operates will help you keep it in good working condition. Here is how a septic tank system works, as outlined by the EPA: When you shower, do laundry, flush the toilet, etc., used water runs through the pipes in your home to one main drainage pipe leaving your house, which flows out into a septic tank.
The septic tank is a buried, watertight container. Most often it is made of concrete, fiberglass, or polyethylene. The tank is made to hold the wastewater long enough to allow solids to settle to the bottom, forming sludge, while the oil and grease floats to the top as scum.
By design, compartments and a T-shaped outlet prevent the sludge and scum from leaving the tank and traveling into the drain field area.
The liquid wastewater (effluent), however, is able to exit from the tank out into the drain field.
The drain field is a shallow, covered, excavation made in unsaturated soil. Pretreated wastewater is discharged through piping onto porous surfaces that allow wastewater to filter through the soil. The soil accepts, treats and disperses wastewater as it percolates through the soil, ultimately discharging to groundwater.
If the drain field is overloaded with too much liquid, it will flood, causing sewage to flow to the ground surface or create backups in toilets and sinks.
Finally, the wastewater percolates into the soil, naturally removing harmful coliform bacteria, viruses and nutrients. Coliform bacteria is a group of bacteria predominantly inhabiting the intestines of humans or other warm-blooded animals. It is an indicator of human fecal contamination.
Signs you need a new system
No one wants sewage water bubbling up through their front yard during the hottest day of summer (or even on the coldest day of winter). Wastewater is not only stinky and gross, it's dangerous, carrying protozoa, bacteria (such as E. coli) and viruses that can be transmitted through fecal matter. If your septic system is leaking, overburdened or damaged, dirty wastewater can leach through the soil to contaminate the water you and your friends and neighbors drink. Whole communities can become ill if there is a major wastewater problem.
Knowing what signs to look for can help prevent a problem before it begins. The first step to a happy septic system is proper maintenance, which includes having your septic tank pumped every three to five years by a professional. If your septic system is not regularly cleaned, it can clog and lead to failure.
Other signs can alert you that it's time to call your septic system professional ASAP to either repair or replace the system. The Washington State Department of Health says that red flags include: Water and sewage from your toilets, drains and sinks that is backing up into your home
Drains in your bathtubs, showers and sinks that are draining too slowly
Gurgling sounds in your plumbing system; pooling water or damp spots visible near or above the septic tank or drain field
A bad smell around the septic tank or drain field
Suspiciously lush grass (from all that — ahem — fertilizer) over the septic tank or drain field, even during dry weather
Algal blooms developing on nearby ponds or lakes
High levels of nitrates or coliform bacteria (found in fecal matter) in your water well when you test it.
There may be many reasons your septic system is failing, but some common causes are clogged pipes running from the house to the tank, blockage to the inlet baffle to the tank, failure of the drain field, or a clogged outlet baffle or effluent filter.
How to hire a pro
A septic system is a big investment. And while fixing your septic system may not be as aesthetically pleasing as repainting your house or remodeling your kitchen, the joys of clean, healthy drinking water are impossible to beat. Because the cost of a septic tank and the installation process will run you into the thousands, it's important to do your due diligence when hiring a pro. Hiring an experienced and qualified professional can prevent major problems like system failure or your tank popping above ground, which can result from a poorly done installation.
When beginning your search, determine whether your state requires septic tank installers to have a contractor license. In California, a sanitation system contractor license is required to perform this type of work. Always check the contractor license number against the state database to ensure the contractor's license is valid and up to date, and that no formal complaints have been filed against them. You'll also want to check whether your regional government has any licensing requirements for this type of work.
Next, read reviews! Find a company that has a solid background and has been in business long enough to give you the confidence that if something goes awry, they'll be around to fix it. Call up to three installation professionals to give you quotes, and have them provide a clearly written estimate that includes information on your tank size and type, details of the pipes and drainfield, and any other particulars.
Never pay the pro in full upfront. Many require a deposit to begin. You will also want a clearly written contract that includes each detail of work, cost, installation information (depth and placement of tank, etc.), labor and product warranty, and projected completion date. Good communication will help ensure a positive experience.
Pro tips:
Don't ignore warning signs, say the experts at Milan and Son Plumbing. Bubbling water in the sink, tub or toilet when you have a septic system can mean that it's backed up. It's better to have a pro check it out than to risk a backflow of sewage.
Be on the lookout for bad odors and wet spots on the surface above your tank or drain field. Better safe than sorry!
When hiring an installation pro, read client reviews and follow up with references to make sure you're choosing the right pro for your project. For more, check out our tips forsmart hiring.
