The Minister for the Environment Alan Kelly has been asked to investigate whether some water meters are a risk to public safety.
TDs have been told that some meters may be covered with the wrong sort of plastic - and may be dangerous to anyone who walks or drives over them.
The claims have been made by a company in Cork which makes a different model of 'boundary box'.
An Oireachtas committee has said the complaint warrants further investigation and has asked Minister Alan Kelly to guarantee that there is no threat to public safety.