Take the 2-minute tour ×
Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It's 100% free, no registration required.

The other night I woke up thinking it was raining really heavily. I looked out the window to see clear skies, so I popped outside to investigate. Along the side of our house I found a stream of water coming from our geyser (hot water tank) overflow pipe. It went on for about 20 minutes or so, which I can only imagine completely emptied the tank. This has happened before, but it happens only occasionally (maybe once every two or three months). When it happens though it will happen two or three days in a row. I don't think this is normal behavior for a geyser, and I'm sure it's causing higher power consumption. Why is my geyser doing this, and is it something that can be fixed?

share|improve this question
add comment

1 Answer

The tank has a serious problem! Pressure is building in the tank and is released by the over pressure valve on the side of the tank and comes out the overflow pipe. This is not normal operation for this to happen! If over pressure occurs even once, it needs to be investigated! If you allow this to frequently happen you are inviting disaster. Get the tank replaced immediately!

Also if you have an expansion tank, the internal bladder may have erupted.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.