A decision taken or act authorised by a water services committee is not invalid merely because, at the time the decision was taken or the act was authorised—
| (a) | there was a casual vacancy on the committee; or |
| (b) | a person not entitled to sit as a member of the committee sat as a member, if— |
| (i) | the decision was taken or act was authorised by a majority of committee members who were present and who were entitled to sit as members; and |
| (ii) | the members contemplated in subparagraph (i) constituted a quorum. |
