Regulation N3 Sanitary pipework
Northern Ireland Not yet in force
Sanitary pipework shall—
(a)
consist of pipes and fittings—
(i)
of such size, layout, construction and watertightness; and
(ii)
with sufficient ventilation,
to ensure the hygienic conveyance of foul water to an underground foul drainage system; and
(b)
have such means of access as is necessary to facilitate the clearance of blockages.