Section 20
of Water Supply Regulations 1961 Reprinted 1999
State Subsidiary LegislationIn forceProvision 20 of 97
Section 20
Every hot water pressure vessel having a capacity of not less than twenty-five gallons shall –
(a)
if made of mild steel, comply with the requirements for cylinders or tanks, as the case may be, of B.S.S. 417: 1951 for galvanised mild steel cisterns, tanks and cylinders; and
(b)
if made of copper, comply with B.S.S. 699: 1951 for copper cylinders for domestic purposes (grades 1, 2 and 3).
Design of flushing cistern.