Lebanon, TN Rinnai Tankless Water Heater Flush
Flat-Rate $250 Service
Specialized Rinnai descaling, hard-water scale removal, pressure restoration, and annual maintenance for Lebanon homeowners.
Flat-rate. Local. Professional.
Proudly serving Stonebridge, Spence Creek, Richmond Hills, Hamilton Springs, Vineyard Grove, and all Lebanon neighborhoods.
Why Rinnai Tankless Systems Need Annual Flushing in Lebanon, TN
Lebanon’s water is naturally higher in mineral content due to the surrounding limestone formations, which accelerates the formation of hard-water scale inside Rinnai tankless systems.
Even if your tankless water heater seems to be working fine, internal scale buildup may already be forming. An annual professional flush removes this hidden buildup before it causes:
• Lower water pressure
• Longer wait times for hot water
• Higher energy usage
• System noise or vibration
• Premature wear on your Rinnai heat exchanger
A properly flushed Rinnai tankless water heater performs better, lasts longer, and delivers more consistent hot water — especially in Hendersonville’s hard-water conditions.
What’s Included in Your $250 Rinnai Tankless Flush
Your Rinnai tankless system is designed to last 20+ years, but only if it’s maintained correctly. Our flat-rate $250 flush includes a complete, professional descaling service using the right tools, the right flow rate, and the right process for Rinnai systems. No shortcuts. No upsells. Just premium care for your home’s most important appliance.
Here’s what’s included
• Full Rinnai Descale Flush
Complete circulation flush using a high-flow pump and professional-grade hoses designed for Rinnai tankless systems.
• Hard-Water Scale Removal
Breaks down mineral buildup inside the heat exchanger to restore performance and reduce wear.
• Inlet Filter Cleaning
Removes debris and sediment from the cold-water intake to improve pressure and flow consistency.
• System Inspection & Performance Check
Basic diagnostics to ensure proper burner function, flow rate, and temperature stability.
• Exterior Line & Valve Check
Quick review of shutoff valves, flex lines, and wall penetration points to confirm everything is functioning safely.
• Reset & Recalibration
A final system check after flushing to make sure your tankless heater is running efficiently.
Tankless Water Heater Flush
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Tankless Water Heater Flush 〰️
Lebanon’s Hard Water: What Homeowners Should Know
Visible signs of hard water in Lebanon:
• White scale on faucets
• Shower doors are spotting quickly
• Slower hot water delivery
• Pressure dropping year after year
These are symptoms of scale forming inside the tankless heat exchanger.
Annual flushing ensures your Rinnai system stays efficient, quiet, and reliable — even with Lebanon’s naturally mineral-rich water supply.
Why Lebanon Homeowners Choose FlowTech
• Rinnai-Only Specialist
• Flat-Rate Pricing (no upsells or surprises)
• Professional Descaling Equipment
• Clean, On-Time Service
• Fully Insured
• Local Lebanon Technician
What our Customers are saying!
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"Pressure Issues". Laura M. — Mt. Juliet, TN
“We started noticing the water pressure in our kitchen sink and bathroom faucets getting weaker over the past few months. Ryan flushed our Rinnai system and cleaned the inlet filter, and the difference was instant. Pressure is back to normal, and the hot water reaches the sinks much faster now. Professional, knowledgeable, and very easy to work with.”
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"Hot Water Getting Weaker Over Time" Brandon & Kelly H. — Lebanon, TN
“For the last year, we’ve had to turn our shower hotter and hotter just to get it comfortable. We assumed the heater was wearing out, but Ryan explained the mineral buildup issue and showed us exactly what was happening inside the unit. After he flushed it, the temperature returned to normal, and the system heated faster. The improvement blows us away.”
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"Black Scum / Sediment Issue" Sarah V. — Gallatin, TN
“I kept seeing a black scum collecting around our kitchen faucet and didn’t realize it was coming from hard-water buildup in our tankless system. Ryan did a full flush and cleaned the filter, and the scum disappeared within a day. The whole system runs smoother now, and the water feels cleaner. Highly recommend scheduling this if you have a Rinnai.”