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Serving Puyallup, Tacoma, Spanaway & the Greater Puget Sound Area
When your water heater heats up, your water expands — and that expansion puts pressure on your entire plumbing system. Without the proper protection, this pressure can cause leaks, damaged valves, and premature water-heater failure. American Mains & Drains LLC provides professional expansion tank installation, system evaluation, and pressure-management solutions built to keep your home safe.
And soon, homeowners will have an all-new way to stay protected: the SOZO Alarm™, our upcoming pressure-alert device designed right here by American Mains & Drains.
Why Your Home Needs an Expansion Tank
In a closed plumbing system, heated water has nowhere to expand—creating spikes of pressure that can stress your plumbing. An expansion tank absorbs that extra pressure, protecting your:
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Water heater
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Pressure relief valve
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Internal piping
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Fixtures and appliances
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Overall plumbing system longevity
If you’ve noticed your T&P valve dripping, water hammer, inconsistent pressure, or your monitoring valve sending thermal-expansion alerts, it may be time for a professional inspection.
Signs of Thermal Expansion Issues
You may experience:
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Relief valve discharging or dripping
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Intermittent high pressure in faucets
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Loud banging or water hammer
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Fluctuating hot water temperature
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Increased wear on plumbing components
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Alerts from monitoring valves about system pressure
Our technicians can diagnose your system, verify if your expansion tank is undersized or failing, and recommend the proper upgrade.
Professional Expansion Tank Installation
Our team will:
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Inspect your water-heater system
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Determine if your home requires an expansion tank
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Identify the correct tank size for your system
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Install and pressurize your tank to proper specifications
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Test your water system for safe long-term performance
This ensures your water heater runs safely and efficiently while protecting your home from unnecessary stress and damage.
Introducing the SOZO Alarm™ — Coming Soon
A Smarter Way to Stay Ahead of Plumbing Failures
American Mains & Drains is proud to be developing an innovative new safety device: the SOZO Alarm™, a pressure-alert system designed to detect abnormal changes inside your home’s water-system loop.
While your expansion tank helps regulate pressure, the SOZO Alarm™ will provide:
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Early warnings of pressure imbalance
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Improved protection against system failures
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Real-time awareness for homeowners
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Added peace of mind for aging water heaters and older plumbing systems
The SOZO Alarm™ will be available soon — designed locally, engineered for safety, and developed for homeowners who want next-level protection.
Want to be the first to know when it launches?
Call us to join our SOZO early-access list at www.sozoalarm.com
Why Homeowners Choose American Mains & Drains LLC
Licensed, insured, and locally owned in the Puget Sound
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Experts in expansion tank sizing, installation, and repair
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Dedicated to preventing water-system emergencies
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Innovators behind the upcoming SOZO Alarm™
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Straightforward pricing and fast appointment windows
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Proudly serving the Puyallup–Tacoma region
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