Plumbing Questions Answered

Find answers to common plumbing questions from Metro Atlanta's trusted plumbing professionals.

Water Heaters
Leaks & Pipes
Drains & Clogs
Fixtures & Appliances
Maintenance & Prevention
General Questions

Water Heater Questions

Why is my water heater leaking?

Water heater leaks can occur for several reasons, and the location of the leak often indicates the source of the problem:

  • Leaking from the top: This typically indicates issues with the inlet/outlet connections, the temperature and pressure relief valve, or the anode rod port. These are usually repairable problems.
  • Leaking from the bottom: This could be due to condensation, a leaking drain valve, or most seriously, a corroded tank. Tank corrosion usually requires replacement of the water heater.
  • Other causes: Excessive pressure within the tank, sediment buildup causing tank deterioration, or a crack in the glass lining of the tank.

If you notice any leak, it's important to address it quickly as even small leaks can cause significant damage. Our technicians can diagnose the exact cause and recommend whether repair or replacement is the most cost-effective solution. Learn more about our water heater services.

Why does my shower run out of hot water quickly?

If your shower is running out of hot water too quickly, there are several potential causes:

  • Sediment buildup: Minerals and debris can accumulate at the bottom of your tank, reducing its capacity and efficiency. Regular flushing can solve this issue.
  • Undersized water heater: Your household's hot water demands may exceed your water heater's capacity, especially if your family has grown or usage patterns have changed.
  • Faulty dip tube: The dip tube directs cold water to the bottom of the tank. If broken, cold water mixes with hot water at the top, reducing hot water output.
  • Thermostat issues: An improperly set or malfunctioning thermostat can limit hot water production.
  • Simultaneous usage: Multiple hot water applications running at once (shower, dishwasher, washing machine) can deplete hot water rapidly.

Our plumbers can diagnose the specific issue and recommend solutions, from simple repairs to upgrading to a larger capacity tank or tankless system for endless hot water.

Should I switch to a tankless water heater?

Switching to a tankless water heater offers several advantages, but it's not the right choice for every home. Consider these factors when making your decision:

Advantages of tankless water heaters:

  • Endless hot water supply (no more cold showers)
  • Energy savings of 24-34% for homes using less than 41 gallons daily
  • Longer lifespan (20+ years vs. 10-15 for traditional tanks)
  • Space savings (wall-mounted units free up floor space)
  • Reduced risk of water damage (no large tank to rupture)

Considerations before switching:

  • Higher upfront cost for equipment and installation
  • May require electrical system upgrades or expanded gas lines
  • Multiple units may be needed for larger homes with simultaneous hot water demands
  • Annual maintenance required to prevent mineral buildup

We can assess your household's hot water usage patterns, existing plumbing setup, and budget to help determine if a tankless system would be beneficial for your specific situation. Learn more about water heater options.

Should I repair or replace my water heater?

The decision to repair or replace your water heater depends on several factors:

  • Age: If your traditional tank water heater is 8-12 years old or your tankless unit is 15-20+ years old, replacement is often more cost-effective than repair.
  • Repair costs: If the repair cost exceeds 50% of the cost of a new unit, replacement is usually the better option.
  • Frequency of repairs: If you're experiencing repeated issues requiring multiple repairs, investing in a new unit will likely save money in the long run.
  • Efficiency: Newer models are significantly more energy-efficient, which can lower your utility bills.
  • Performance: If your current unit isn't meeting your hot water needs, upgrading to a different capacity or type of water heater might be necessary.

Our plumbers can assess your current water heater's condition and help you make an informed decision based on your specific situation and budget. We offer both repair services and installation of new traditional tank and tankless water heaters.

How often should I flush my water heater?

We recommend flushing your water heater annually to remove sediment buildup that can reduce efficiency and shorten its lifespan. However, the optimal frequency depends on several factors:

  • Water hardness: Homes with hard water (high mineral content) should flush more frequently, potentially every 6 months, as mineral buildup occurs more rapidly.
  • Tank size and household usage: Smaller tanks or homes with higher hot water usage may need more frequent flushing.
  • Water heater age: Older units often benefit from more frequent maintenance to extend their remaining service life.
  • Signs indicating needed maintenance: Rumbling/popping sounds from the tank, decreasing hot water capacity, or visible sediment in hot water are all signs your water heater needs immediate flushing.

Professional flushing not only removes sediment but also provides an opportunity to inspect the anode rod, pressure relief valve, and other components critical to your water heater's operation and safety. We offer comprehensive water heater maintenance services that include proper flushing techniques that won't damage your unit. Learn more about water heater maintenance.

Why does my shower run out of hot water quickly?

If your shower runs out of hot water too quickly, several factors could be causing this frustrating issue:

  • Sediment buildup - Mineral deposits accumulate at the bottom of your tank, reducing capacity and heating efficiency
  • Undersized water heater - Your household's hot water demands may exceed your water heater's capacity
  • Worn dip tube - The tube that delivers cold water to the bottom of the tank might be broken, causing cold water to mix with hot water
  • Thermostat issues - Your water heater's thermostat may be malfunctioning or set too low
  • Simultaneous water usage - Running multiple hot water appliances at once (dishwasher, washing machine, showers) can quickly deplete hot water
  • Heating element failure - In electric water heaters, one of the two heating elements may have failed
  • Seasonal temperature changes - Winter's colder incoming water requires more energy to heat to the same temperature

For immediate improvement, try reducing shower flow with a low-flow showerhead, staggering hot water activities, and having your water heater professionally flushed. If problems persist after maintenance, you might need to consider a larger water heater or a tankless system that provides continuous hot water. Our plumbers can evaluate your household's hot water needs and recommend the most efficient solution.

Should I switch to a tankless water heater?

Switching to a tankless water heater offers several benefits, but isn't right for every household. Here's what to consider:

Advantages of tankless systems:

  • Endless hot water - Provides continuous hot water without running out
  • Energy efficiency - Typically 24-34% more efficient than conventional tanks for homes using less than 41 gallons daily
  • Space-saving design - Wall-mounted units free up valuable floor space
  • Longer lifespan - Often last 20+ years compared to 10-15 years for tank models
  • Reduced risk of leaks/flooding - No stored water means minimal risk of catastrophic leaks

Factors to consider:

  • Higher upfront cost - Tankless units cost more initially, though they often save money long-term
  • Installation requirements - May need electrical upgrades, larger gas lines, or venting modifications
  • Flow rate limitations - Multiple simultaneous hot water uses may exceed capacity in some models
  • Maintenance needs - Annual descaling is essential, especially in areas with hard water

Tankless systems work best for households with moderate hot water usage. Large families with multiple simultaneous hot water needs might require multiple units or a high-capacity model. Our plumbers can evaluate your home's specific requirements, discuss the pros and cons based on your usage patterns, and provide a detailed cost analysis to help you make the best decision.

How often should I flush my water heater?

Water heaters should be flushed regularly to remove sediment buildup that reduces efficiency and shortens lifespan. The recommended frequency depends on several factors:

  • Water quality - Homes with hard water should flush every 6-12 months; those with soft water may be able to go 1-2 years
  • Household size - Larger households with higher water usage benefit from more frequent flushing
  • Water heater age - Older units generally need more frequent maintenance
  • Tank capacity - Smaller tanks may accumulate sediment more quickly relative to their size
  • Water temperature setting - Higher temperatures can accelerate mineral precipitation

For most Metro Atlanta homes, we recommend annual flushing as part of regular water heater maintenance. Signs your water heater needs immediate flushing include:

  • Popping or rumbling sounds during heating cycles
  • Decreased hot water capacity
  • Longer heating times
  • Fluctuating water temperatures
  • Visible sediment in hot water
  • Rust-colored water from hot taps only

Professional flushing includes not just draining the tank but also checking the pressure relief valve, inspecting the anode rod, and ensuring all components are functioning properly. This comprehensive service helps prevent costly repairs and extends your water heater's useful life.

Are tankless water heaters worth the cost?

Tankless water heaters typically cost 2-3 times more than conventional tank models for purchase and installation, but many homeowners find them worth the investment for these reasons:

  • Energy savings - Tankless units can reduce water heating costs by 24-34% in homes that use 41 gallons or less of hot water daily. Even with higher usage, they remain 8-14% more efficient
  • Longer lifespan - Tankless units typically last 20+ years compared to 10-15 years for tank heaters, meaning fewer replacements over time
  • Endless hot water - For families tired of running out of hot water during showers, this benefit alone can justify the cost
  • Space savings - Wall-mounted units free up valuable floor space in utility areas
  • Reduced risk of water damage - No stored water means no catastrophic 40-50 gallon leaks that can severely damage your home
  • Potential tax credits and rebates - Energy-efficient models may qualify for incentives that offset initial costs

The financial break-even point typically occurs in 7-15 years, depending on your hot water usage, local utility rates, and installation costs. Families that use significant amounts of hot water or plan to stay in their home long-term often see the best return on investment.

Our plumbers can provide a detailed cost analysis specific to your household, including expected energy savings, available incentives, and projected payback period to help you make an informed decision.

Still Have Questions? We're Here to Help!

If you couldn't find the answer you were looking for, our experienced plumbing professionals are just a call or click away. We're happy to provide solutions tailored to your specific plumbing needs - no question is too big or small!