In the event any such lateral or laterals shall be laid by any owner or owners and such certificates filed with the city clerk within the time provided in Section 13.20.020, no person or persons may connect to any such lateral or laterals without first paying to and depositing with the city clerk an amount sufficient to pay the proportion of the original costs and disbursements for the installation of such a lateral or laterals to which such person proposes to connect which such person would have paid had he joined in the original installation, or upon the basis of the pro rata cost of installation divided among any other persons who may theretofore have connected thereto and paid their pro rata proportion of the cost of such installation. (Ord. 160 § 4, 1979)