(1) A building sewer intended to serve a mobile home shall,
(a) be not less than 4 in. in size,
(b) be terminated above ground,
(c) be provided with,
(i) a tamperproof terminal connection that is capable of being repeatedly connected, disconnected and sealed,
(ii) a protective concrete pad, and
(iii) a means to protect it from frost heave, and
(d) be designed and constructed in accordance with good engineering practice.