Print: In this video a physiotherapist demonstrates gentle exercises for piriformis syndrome, a form of sciatica. The aim of these exercises is to stretch and mobilise the piriformis muscle in the buttocks and therefore to reduce the symptoms of sciatica. This video is part of a series on exercises for sciatica.
1 AGE: On average, your gas hot water heater should last anywhere between 8 to 12 years, while an electric model will last a bit longer at 10 to 15 years.  WATER: When you use your hot water tap, does the water look a bit tinted?
When water begins to leak from the bottom of a water heater, it is time to replace it. Leaking is a sign of corroding and wear within the tank. Most hot water heaters last for at least 10 years, and some will stay in good shape for up to 20 years. Replace a water heat as soon as leaking is noticed to avoid flooding and additional clean up.