Do i need to use a qualified plumber to install my hot water cylinder? Comments Off on Do i need to use a qualified plumber to install my hot water cylinder? 18 Jan 2016 Vote Up 0 Vote Down Answered Public Public Private Installations Anonymous asked January 18, 2016 Hi There, Do i need to use a qualified plumber to install my hot water cylinder? 1 answer Vote Up 0 Vote Down Public ⋅ January 20, 2016 Yes, all plumbing needs to be carried out by qualified tradesperson #1 Please login or Register to Submit Answer