How to Clean Hot Water Pipes


Hot water pipes are very susceptible to lime buildup. It's the same with hot-water heaters. The hot water dissolves lime, so that it flows freely with the water. However, the lime solidifies once it cools. That can be a problem for heaters and your hot-water pipes. You can increase your hot-water flow, however, and make your pipes more efficient.

Things You'll Need

  • An adjustable pipe wrench
  • A concentrated bottle of lime and scale remover
  • Gloves
  • Bucket
  • Turn off your hot-water heater. If you have a gas water heater, turn off both the gas-feed and water lines. Otherwise, you can turn off just the water line.

  • Drain out half of your heater's water. Find the drain nozzle on your water heater, and adjust it so that the water drains out. If the floor under your heater does not have a drain, then you need to use a bucket to collect and dispose of it. Other hot-water heaters may take water out through pipes. Follow your specific model's instructions. Each make, model, and year of hot-water heater is slightly different, but nearly all have specific instructions mounted on them near the nozzle.

  • Remove the pressure valve. Generally, is it on top of the hot-water heater. Put on your gloves. Then, using your adjustable pipe wrench, turn the valve in a counter-clockwise rotation to remove it.

  • Pour the entire bottle of lime remover into the open valve.

  • Replace the pressure-release valve.

  • Restore the heater to normal operations. Turn on your water feed, and according to instructions on your unit, relight the hot-water heater. Allow the tank to fill up completely. You may hear bubbling and hissing, but that is normal.

  • Go through your house, and turn on the hot-water faucets. Hot water and foam will pour out of them. That is exactly what you want to see. That means the chemicals are removing lime and scale from both your hot-water heater and your water pipes. Keep the faucets on until the water runs clean and clear. Once you see clear water coming out, that means that your pipes, quite literally, are as good as new.

Tips & Warnings

  • Do this on day when the weather allows for you to open your home's windows, as the lime remover may have a strong odor.
  • If you are living in a location in which there is a drought, keep in mind that you may violate water restrictions if you do this.

Related Searches


Promoted By Zergnet


You May Also Like

  • How to Clean Out a Water Line

    It’s the strangest thing—you have a strong water flow to one sink in your master bath, but water from the other faucet...

  • How to Clean Residential Water Pipes

    Buying a home means being responsible for much more than just the structure. The property is also the homeowner's responsibility, as are...

  • How to Clean Out Pipes

    Old home water systems sometimes start filling up with sediment after years, with the water stream notably diminished. It's no coincidence that...

  • How to Remove Lime Scale From Pipes

    Lime scale buildup on a water pipe occurs around the threaded pipe joints where a small amount of water can leak out....

  • How to Clear Clogged Water Lines

    Clogged water lines are often caused by various reasons, from an excessive amount of hair trapped inside of the pipe to larger...

  • Cleaning Clogged Water Pipes

    Clean clogged water pipes by using commercial cleaning products or making a homemade, natural cleaning product with baking soda and boiling water....

  • Home Remedy for Cleaning Water Pipes

    Drains and pipes often become clogged after years of use. If a plunger does not unclog the pipes, then further treatment is...

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!