Septic questions for Bastrop & Central Texas.

For a typical conventional system, every three to five years. That’s the TCEQ guideline and the interval Larry’s has recommended for decades.

A bigger household, a smaller tank, a garbage disposal or lots of laundry all shorten the interval. Aerobic systems are pumped when sludge depth or the manufacturer’s guidance calls for it, which your maintenance provider checks on each visit.

The technician uncovers the tank lids, pumps out the liquid, sludge and scum with a vacuum truck, and looks over the tank while it’s empty.

It’s a good moment to spot cracked lids, missing baffles, roots or a line that’s running back. Expect notes on anything that needs attention. If your lids are buried, risers bring them up to grade so the next pump-out is quicker.

Wipes (even “flushable” ones), feminine products, paper towels, grease and cooking oil, medicines, paint, solvents, pesticides and harsh chemicals.

Septic systems are built for domestic sewage. Anything industrial or hazardous kills the bacteria that break down solids, and anything that doesn’t dissolve ends up in the tank or the field. Use the trash can, and spread out laundry loads over the week.

A working system doesn’t need them. The bacteria come from what you already send down the drain, and no additive replaces pumping.

Some products can stir up solids and push them into the field. Save the money for a regular pump-out.

It works, but it adds solids and means more frequent pumping. Scraping plates into the trash is easier on the system.

Because an empty tank in wet ground can float or shift. Groundwater pushes up on it, and a light, empty tank has nothing holding it down.

That’s why a tank should be refilled after it’s pumped, and why pumping during a flood or with saturated soil needs a professional’s judgment.

Slow drains, gurgling pipes, sewage odors inside or outside, soggy ground or standing water over the field, unusually green grass over the field, sewage backing up, or an alarm going off.

One sign alone can just mean the tank is due for pumping. Several together, or any surfacing sewage, means call now.

Stop using water, keep people and pets out of the area, and call. Sewage is a health hazard.

Don’t run the washer, dishwasher or showers; every gallon makes it worse. Avoid touching the sewage and wash well if you do. Larry’s is on call for urgent pump-outs: (512) 212-9821.

No. Never enter a septic tank or lean into an open one. Septic gases (hydrogen sulfide and methane) and low oxygen can kill in moments, including people who try to help.

Keep lids secured and screwed down, keep children and pets away from open tanks, and leave the inside of the tank to a licensed crew with the right equipment.

Usually a full tank, a loose or cracked lid, a broken line or a failing field. On aerobic systems it can also mean a stopped compressor or an empty chlorinator.

If you see wet spots or sewage on the surface, keep people and pets off it and call.

Yes. Larry’s is on call for routine and emergency pumping. Office hours are Monday to Friday, 9 to 5; call (512) 212-9821 or text (512) 985-6570.

No. Vehicle weight crushes lines, compacts soil and can crack tanks. Keep cars, trailers, livestock and heavy equipment off the tank and field.

Don’t build over them either: no sheds, slabs or pools. If you’re not sure where the field is, your permit drawing shows it, or we can locate it.

An aerobic system pumps air into the wastewater so oxygen-loving bacteria break it down far more than a plain septic tank. The treated water is disinfected with chlorine and then sprayed or dripped over a lawn area.

Most units have three stages: a trash or pre-treatment tank, an aeration chamber with a compressor, and a pump tank that feeds the sprinklers or drip lines on a timer or float. They’re common in Central Texas because they work on clay and shallow soils where a conventional field struggles.

Yes, for at least the first two years. Texas rules and local permitting authorities require a maintenance contract on aerobic and other advanced systems, and the provider must inspect the system and file reports.

Under TCEQ rules, reports are due at least every four months (every six with electronic monitoring). After the first two years, TCEQ allows some homeowners to do their own maintenance, but many local authorities require training or don’t allow it at all. Larry’s offers contracts in the City of Austin, Travis County, the City of Bastrop, Bastrop County, Caldwell County and Fayette County.

Calcium hypochlorite tablets made and certified for wastewater disinfection. Never use swimming pool chlorine tablets.

TCEQ warns that pool tablets (trichloroisocyanuric acid) don’t disinfect effluent properly and can release an explosive gas in a septic chlorinator. Follow the label, wear gloves and keep tablets away from children.

The technician checks, troubleshoots and tests the system: compressor and air flow, pumps and floats, alarm, timer, chlorinator, sprinklers or drip lines, and sludge levels. Then the report goes to the permitting authority.

Larry’s inspects every part of the system on each visit and leaves detailed notes on any repairs needed.

Usually high water in the pump tank or a failed compressor, pump or float. Cut back on water use and call.

Don’t open the control panel or work on the wiring; it’s live. Silencing the alarm doesn’t fix the problem.

The compressor and pump stop. Use as little water as possible until power is back, because the pump tank has limited room.

Once power returns, the system should restart on its own. If the alarm stays on or the sprinklers don’t run, call.

Many are set to spray in the early morning hours, when people and pets are least likely to be in the yard. A timer controls it.

If yours sprays at odd times or all day, a float or timer may have failed. Have it checked.

The soil finishes the treatment. It has to accept water at a steady rate and filter it before it reaches groundwater.

Around Bastrop that ranges from the deep sand of the Lost Pines to heavy prairie clay near Elgin and Lockhart and thin soil over limestone west of Austin. A licensed site evaluator classifies the soil, and that classification decides which system is allowed.

Neither is better everywhere. A conventional system is simpler and has no moving parts, but it needs soil that can take the water. Aerobic spray and drip systems work where it can’t, at the cost of power, chlorine and a maintenance contract.

Low-pressure dose systems sit in between. The site evaluation and your permitting authority decide what fits your lot. Larry’s installs all four types.

Drought shrinks and cracks clay soil, which can shift pipes and tanks; heavy rain then swells it and saturates the field so it can’t drain.

Watch for new odors, gurgling or wet spots after big weather swings, and have the system checked if they show up.

Use as little water as possible until the ground drains, keep away from any surfacing sewage, and have the system checked before going back to normal use.

Don’t pump a tank while the soil around it is still saturated without a professional’s judgment, because an empty tank can float. Electrical parts of aerobic systems that went under water need checking before they’re powered back up. If you’re on a private well, don’t drink the water until it’s been tested; use bottled water and follow the local health department’s guidance.

Yes. Roots seek out water in lines, cracked tanks and fields, and in the Lost Pines there are plenty of trees close to systems.

A camera inspection finds where roots are getting in. Plant new trees well away from the tank and field.

Texas doesn’t have a statewide rule requiring one at every sale, but you should get one. Lenders and buyers often ask for it, and a standard home inspection doesn’t open the tank or test the field.

A failed system can cost far more than the inspection. Larry’s NAWT-certified inspectors do real estate inspections for buyers and sellers.

Larry’s checks the tank for cracks and roots, confirms the drain field is taking water and working properly, and on aerobic systems tests the mechanical parts and sprinklers. You get a detailed report with recommendations.

It helps to have the tank pumped at the same visit so the inside of the tank can be seen clearly.

Ask for the permit and approved design from the county or city, the maintenance contract and recent reports if it’s an aerobic system, and pumping records.

The permitting authority (for example Bastrop County, Travis County or the City of Austin) keeps permit records. The drawing shows where the tank and field are.

The requirement stays with the system, so the new owner needs a current contract or must meet the local rules for owner maintenance.

Ask the seller for the current contract and recent reports, and call us to set up a contract in your name.

Start with the permit drawing from your county or city. Otherwise, the tank is usually a few feet to a few yards from where the main sewer line leaves the house.

We can locate and uncover it, and add risers so the lids are at ground level next time.

The Texas Commission on Environmental Quality (TCEQ) sets the rules for on-site sewage facilities (OSSFs) in 30 TAC Chapter 285 and licenses the people who work on them. Local authorized agents, usually the county or a city, issue permits and inspect.

In our area that includes Bastrop County, Travis County, the City of Austin (Austin Water), Hays County, Caldwell County, Fayette County and Lee County.

Installers need a TCEQ Installer I or Installer II license (Installer II covers every system type), site evaluations need a TCEQ Site Evaluator license, and aerobic maintenance needs a TCEQ maintenance provider license.

Larry’s lists Maintenance Provider MP2093, Installer II (listed as Class 2 Installer) OS32844 and Site Evaluator OS33995, and its inspectors are NAWT-certified.

Ask for the license number and look it up with the TCEQ’s occupational licensing search, or contact TCEQ licensing at licenses@tceq.texas.gov.

Your county or city permitting office can also tell you whether a contractor is registered to work in its jurisdiction.

Yes. New, replacement and modified systems need a permit from the local authorized agent before work begins, and the finished system is inspected before it’s approved for use.

Some counties, Bastrop and Hays among them, require a permit regardless of acreage. Bastrop County lets certain emergency repairs go ahead without a permit if they’re reported within 72 hours.

A site evaluation is the required first step for any new system: a licensed site evaluator checks the soil class, depth and restrictive layers and picks the best place for the system.

The findings go into the permit application. Larry’s holds a TCEQ Site Evaluator license and does evaluations for its own installations.

The build itself is often a day or two once the permit is in hand; the evaluation, design and permit review usually take longer than the digging.

Several customers have described Larry’s finishing their installation in one day. Timing depends on the system, the weather and how fast the permitting office works.

Mainly the system type the soil allows, the home’s size (bedrooms and expected water use), access for equipment, rock, and permit and design fees.

Conventional systems usually cost less to build than aerobic ones, and aerobic systems add ongoing contract and chlorine costs. Larry’s prices are competitive with no hidden fees; call for a quote on your property.