Sale of utilities by park owner or developer.

No mobile home park owner or developer who purchases electricity or gas (natural, manufactured, or similar gaseous substance) from any public utility or municipally owned utility or who purchases water from a water system for the purpose of supplying or reselling the electricity, gas, or water to any other person to whom she or he leases, lets, rents, subleases, sublets, or subrents the premises upon which the electricity, gas, or water is to be used shall charge, demand, or receive, directly or indirectly, any amount for the resale of such electricity, gas, or water greater than that amount charged by the public utility or municipally owned utility from which the electricity or gas was purchased or by the public water system from which the water was purchased. However, as concerns the distribution of water, the park owner may charge for maintenance actually incurred and administrative costs. This section does not apply to a park owner who is regulated pursuant to chapter 367 or by a county water ordinance.