Regulation 81 Underground foul drainage

Underground foul drainage 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 a sewer, cesspool, septic tank or similar structure; and

(b)

have such means of access as is necessary to facilitate the clearance of blockages.