This document provides instructions for performing a DIY gravity flush of a water heater in 5 steps: 1) disconnect the water heater from its power source, 2) turn off the water source, 3) drain the water from the tank by opening the drain and T&P valves, 4) refill the tank by closing the valves and turning the water back on, and 5) re-connect the power source. Performing an annual gravity flush helps prolong the efficiency and lifespan of the water heater by draining built-up sediment and debris. Common water heater failures are caused by high water pressure, calcium and sediment buildup, corrosion debris, or faulty heating elements.

1. 5 Steps To A DIY
Gravity Flush

2. What Is Water Heater
Gravity Flush?
Performing a Gravity Flush annually
drains built-up sediment and debris
within the tank prolonging the efficiency
and lifespan of your water heater.​
The water heater is out of mind, out of
sight until there’s no hot water OR
water floods the house.

3. An essential plumbing appliance no less, but one
prone to failure without crucial annual
maintenance and/or preventive maintenance.​
Next

4. 5 Steps To A DIY
Gravity Flush
Our experienced plumbers are happy to provide
proper advice on water heater gravity flush,
marking our services a second option to none.

5. Step 1
Gas: Turn shutoff valve OFF
Electric: Unplug power cord.
Disconnect water
heater from the
power source.

6. Step 2
TurnWater
source

7. Step 3
Drain the water.
• Connect garden hose to the
drain valve (drain to yard)
• Turn drain valve ON​
• Turn T&P valve ON (allows water
to drain faster as air escapes)​

8. Step 4
Refill the tank
water.
• Turn drain valve OFF and disconnect
the hose
• Turn water supply ON
• Tip: Keep T&P valve open allowing air
to escape while filling with water.​
• Turn T&P valve OFF once water drips
from valve​

9. Step 3
Re-connect
power source.​
Gas: Turn shutoff valve ON​
Electric: Plug power cord

10. To keep your water heater working efficiently and
extend the life span of the tank from the initial 8-
10 years to 15- or even 20-years, we recommend an
annual preventive maintenance.

11. • High water
pressure
• Built-up
calcium &
sediment
• Excessive
corrosion
debris
• Faulty or Dying
heating elements
Common Water
Heater failures
are caused by:

12. Reach us...
Tired off! by following the same tips and
being unable to find the exact cause for
the heater failure. Then, don’t hesitate
to schedule an appointment today.

13. Our experts are waiting for your call.​
Contact us today at ​
24/7 Emergency plumbing services
Book your water heater power flush today.
(210) 679-6020
Hurry up!