(a) Whenever necessary to adequately indicate or explain the scope or manner of a proposed installation, replacement or repair, or its relation to existing installations or equipment; and whenever a new soil stack, vent stack, house drain or any part thereof is to be installed, drawings showing the proposed work shall be submitted with the application for a permit.
(b) Application for permit to install sanitary or storm drainage, regulated under provisions of Section 3133.05(b) shall be accompanied by plans prepared by and which bear the seal of a registered architect, registered landscape architect, or a registered professional engineer.