If it is safe to do so and you know how to do it correctly, shut off the water supply to your water heater. Next, turn off the power supply to the water heater. Both of these steps can help prevent further leaks and damage to the water heater. You might always want to loosen the drain valve and start collecting water in a bucket, ensuring no more leaks out. Call a professional to get the entire water heater inspected and repaired.

Certain strands of black mold – Stachybotrys chartarum – can cause health problems if inhaled or ingested, especially for people with allergies, weakened immune systems, or respiratory issues. Not all types of black mold are dangerous. However, you might not be able to differentiate between one black mold and the next without laboratory testing. The safer choice is to always schedule a mold removal and remediation service whenever you spot mold in your house.