Septic System Services

Septic Repair Services in Merced County

Septic problems can turn serious fast—causing health hazards, unpleasant odors, slow drains, backups, and costly damage to your system and property. Fortunately, MCM Plumbing is here to help. We provide professional septic repair, diagnostics, and system installation services across Merced County and the Central Valley. Because we are Jet System Certified, we’re also qualified to service advanced aerobic treatment systems (where applicable).

Notice: MCM Plumbing does not offer septic tank pumping. If pumping is needed, we recommend contacting a licensed septic pumping provider. We can coordinate scheduling with your pumper when needed.

Septic Repairs, Diagnostics & Maintenance

If your septic system is showing warning signs, we can troubleshoot the issue, document findings, and recommend the most practical repair options.

Common Signs You May Need Septic Repair

• Slow drains, recurring clogs, or gurgling sounds
• Sewage odors inside or outside
• Backups affecting multiple fixtures
• Pooling water, soggy ground, or unusually green patches near the drain field
• Suspected broken, crushed, or separated lines

Our Septic Services Include:

• Septic tank and leach line locating
• System mapping and documentation
• Septic system diagnostics and repair
• Hydro-jetting and cleanout support (where appropriate)
• Contractor support for remodels and additions
• Jet System inspection and service (advanced/aerobic systems)

Septic Inspections (Merced County)

MCM Plumbing is on the Merced County list of qualified providers to perform septic inspections. If you need an inspection for a property sale, maintenance planning, or system troubleshooting, we can evaluate the system, document findings, and recommend next steps.

Inspection scope can vary based on access, system type, and site conditions. If required components are not safely accessible, we may recommend additional steps (such as locating/exposing lids or coordinating pumping) to complete the evaluation.

Call for septic repair in Merced County: (209) 261-2740

Frequently Asked Questions

What is a septic system?

A septic system is an onsite wastewater treatment solution that processes sewage from your home. Typically, it includes a buried tank and a drain field (leach field).

How often should I pump out my septic tank?

Most homes should plan on pumping about every 2–5 years, depending on tank size, household occupancy, and usage. A licensed septic professional can help set the right schedule for your property.

What happens if I don’t pump my system?

Without regular pumping, your system may experience slow drains, sewage backups, odors, standing water near the drain field, or premature system failure.

How do septic systems work?

Wastewater flows into a buried tank where solids settle and scum rises. The remaining liquid (effluent) exits to the drain field. As it filters through the soil, beneficial bacteria help break down contaminants naturally.

Common Problems We Repair

• Broken, crushed, or separated sewer/septic piping
• Blockages in septic lines or leach lines
• Drain field saturation or failure (diagnostics and repair planning)
• Hydraulic overload caused by excess water use or plumbing leaks

General Septic Maintenance Tips

• Follow a pumping schedule recommended by a licensed septic professional (often every 2–5 years)
• Inspect your system periodically—especially if you notice symptoms
• Never flush wipes, grease, or hygiene products
• Fix leaking toilets or faucets right away
• Avoid parking, driving, or building over the drain field
• Plant only shallow-rooted grass in septic areas

How long does a septic inspection take?

Most inspections take 2 to 6 hours, depending on system size, condition, access, and whether locating/exposing components is required.

Should I be present for the inspection?

While not mandatory, it can be helpful. You may need to grant indoor access, and it’s a great chance to better understand your system’s layout and condition.

Additional Septic System Tips

• Stagger high water usage (e.g., laundry) to reduce strain on the system
• Use septic-safe cleaning products
• Avoid chemical additives unless recommended by a qualified professional
• Keep a sketch/log of your system layout and service records
• For long-term system health, read our full Septic System Care Guide

Can I plant a garden over my septic field?

It’s best to avoid gardens, shrubs, and deep-rooted plants over a drain field. Stick to shallow-rooted grasses and avoid digging into the drain field area.

What is a gray water system?

Gray water systems collect wastewater from non-kitchen sinks, laundry, and showers. After filtration (and where permitted), this water can be reused for irrigation. These systems operate separately from a septic system and can reduce overall strain.

Need septic repair help? Call MCM Plumbing today.

For equipment access, service limitations, and warranty details, please review our full disclosures.