Why you might want an irrigation only water meter to save money in Germantown
Germantown homeowners with large lawns often pay double for outdoor watering through MLGW’s combined water and sewer billing system. A separate irrigation meter tracks only your outdoor water use, eliminating sewer charges for that portion and potentially saving hundreds each summer. This guide explains how it works, the MLGW permit process, and what Germantown property owners need to know. MLGW irrigation meter requirements.
How Germantown irrigation meters save you money
MLGW charges sewer fees based on your total water consumption, even for water that never enters the sewer system. When you water your lawn, wash your car, or fill your pool, you still pay full sewer rates on that usage. A separate irrigation meter isolates outdoor water use so you only pay sewer fees on indoor consumption. Midtown Sewer Line Repair Without Digging Up Your Entire Yard.
Typical Germantown homes with quarter-acre lawns use 15,000-25,000 gallons monthly during peak summer months. At current MLGW rates, that’s $60-100 in sewer charges you could avoid with a secondary meter. The savings multiply for larger properties or those with extensive landscaping.
Real Germantown savings example: A homeowner in Forest Hill subdivision reduced their July bill by $87 after installing an irrigation meter. Their 20,000 gallons of outdoor use no longer triggered sewer charges.
MLGW requirements for Germantown irrigation meters
MLGW requires specific permits and backflow prevention devices for all secondary meters in Germantown. The process starts with submitting an application through MLGW’s Customer Service Center, along with a site plan showing the proposed meter location and backflow assembly.
Germantown properties must comply with Shelby County plumbing codes and MLGW’s cross-connection control requirements. The backflow preventer must be a Double Check Valve Assembly (DCVA) or Reduced Pressure Zone (RPZ) device, depending on your irrigation system’s complexity. Plumbing Somerville.
MLGW inspects all installations before activating the secondary meter. The inspection checks proper meter installation, backflow device certification, and isolation from the main water supply. Most Germantown installations receive approval within 7-10 business days after passing inspection. Water Stains on Ceiling or Walls.
Golden Nugget: MLGW’s Germantown service area includes properties along Poplar Pike and Forest Hill-Irene Road that require RPZ devices due to higher water pressure zones.
Backflow prevention requirements in Germantown
Tennessee state law and Shelby County codes mandate backflow prevention for all irrigation systems connected to potable water supplies. The device prevents contaminated water from flowing back into your home’s drinking water system. Tennessee backflow prevention regulations.
Germantown properties need certified backflow preventers installed by licensed plumbers. The device must be tested annually by a TDEC-certified tester. MLGW maintains records of all backflow assemblies and requires proof of annual testing before renewing water service.
Common backflow devices for Germantown irrigation include:
- Double Check Valve Assembly (DCVA) – for simple residential systems
- Reduced Pressure Zone (RPZ) – for systems with chemical injectors or higher hazard potential
Golden Nugget: Germantown’s water pressure ranges from 60-120 PSI depending on elevation, affecting backflow device selection. Properties near Wolf River require RPZ devices due to higher contamination risk.
The installation process for Germantown properties
Installing an irrigation meter requires trenching from your main water line to the desired meter location. Most Germantown installations place the secondary meter near the irrigation controller or main water shutoff valve.
The process typically includes:
- Obtaining MLGW permits and approvals
- Installing the secondary water meter and meter pit
- Mounting the backflow prevention assembly
- Connecting to the main water supply with proper isolation valves
- Pressure testing and leak checking all connections
- Scheduling MLGW inspection and meter activation
Installation time varies by property complexity but typically requires 4-8 hours for residential systems. Germantown properties with extensive landscaping may need additional time for trenching around established plants.
Golden Nugget: Many Germantown homes built before 2000 have copper supply lines that require dielectric unions when connecting new meters to prevent galvanic corrosion.
Cost analysis and ROI for Germantown homeowners
Installation costs for irrigation meters in Germantown range from $1,200 to $2,500 depending on property size and existing plumbing configuration. This includes permits, materials, labor, and the initial backflow device installation.
Annual costs include $75-150 for backflow testing and $50-100 for meter reading fees. These ongoing expenses are offset by sewer charge savings during the irrigation season.
Typical Germantown ROI timeline:
- Small lawn (5,000 sq ft): 2-3 years to break even
- Medium lawn (10,000 sq ft): 1.5-2 years to break even
- Large estate (1+ acre): 1 year or less to break even
Properties with extensive irrigation systems, pools, or water features see the fastest returns. Germantown’s summer water rates make the investment particularly attractive for high-use properties.
Winterization and maintenance requirements
Germantown’s freeze-thaw cycles require proper winterization of irrigation systems and backflow preventers. Temperatures below 25°F can damage exposed pipes and backflow devices.
Winterization steps include:
- Draining all water from irrigation lines
- Blowing out lines with compressed air
- Insulating exposed backflow preventer
- Shutting off isolation valves
- Installing freeze protection covers
Professional winterization costs $75-150 in Germantown. Skipping this step risks costly freeze damage to backflow devices and supply lines. Professional Drain Cleaning Services in Bartlett to Stop Recurring Clogs for Good.
Golden Nugget: Germantown’s last frost date averages April 10, making mid-March the ideal time for system startup and testing.
MLGW billing and sewer fee credits
After installation, MLGW bills each meter separately. Your primary meter covers indoor water and sewer use. The secondary meter only tracks outdoor water, with no sewer charges applied.
Billing occurs monthly, with each meter appearing as a separate line item. You’ll see actual water usage on both meters plus the standard sewer charges only on your primary meter.
MLGW offers seasonal rate adjustments for irrigation meters during peak summer months. These adjustments can provide additional savings when outdoor watering peaks in July and August.
Golden Nugget: MLGW’s Germantown service area includes properties with separate irrigation meters that qualify for sewer fee credits dating back 12 months with proper documentation.
Common questions about Germantown irrigation meters
Property owners often ask about permit requirements, installation timing, and long-term maintenance. MLGW processes most Germantown applications within 5 business days when all documentation is complete.
Installation timing matters for established lawns. Spring installations allow grass recovery before summer heat, while fall installations avoid disrupting peak growing season.
Maintenance requirements are minimal beyond annual backflow testing. The secondary meter requires no special care beyond keeping the meter pit clear of debris and vegetation.
Frequently Asked Questions
Do I need a permit for an irrigation meter in Germantown?
Yes. MLGW requires permits for all secondary meters in Germantown. The permit process includes site plans, backflow device specifications, and final inspection approval.
How much can I save with an irrigation meter?
Savings depend on lawn size and watering habits. Typical Germantown homes save $300-600 annually, with larger properties saving $1,000+ per year on sewer charges.
What type of backflow preventer do I need?
Most Germantown residential properties need a Double Check Valve Assembly. Properties with chemical injectors or higher pressure zones require Reduced Pressure Zone devices.
When should I winterize my irrigation system?
Winterize before the first hard freeze, typically by November 15 in Germantown. Professional winterization prevents costly freeze damage to backflow devices and supply lines.
Schedule your Germantown irrigation meter consultation
Installing an irrigation meter requires proper permits, backflow prevention, and MLGW coordination. Our Germantown team handles everything from application to final inspection, ensuring your system meets all local codes and saves you money from day one.
We serve all Germantown neighborhoods including Forest Hill, Dogwood Grove, and properties along Poplar Corridor. Our licensed plumbers understand MLGW requirements and Shelby County codes specific to Germantown properties. How to Tell if You Have a Slab Leak Under Your Memphis Home Foundation.
Call (901) 640-3313 today to schedule your free consultation. We’ll evaluate your property, explain the permit process, and provide a detailed cost estimate with projected savings. Don’t wait until summer water bills arrive – start saving now.
Ready to cut your water bills? Call (901) 640-3313 to speak with our Germantown irrigation specialists. We handle everything from permits to final MLGW inspection, ensuring your new meter saves you money while meeting all local requirements.
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