To provide a fluid delivering system including one or more measuring modules for measuring the predetermined volumes of one or more different fluids to deliver the fluids.

Respective measuring modules 104 and 106 include a fluid injection port 116 enabling a fluid exceeding a desired volume to flow through a container 118, a holding container, an overflow opening part and a discharge port 134 for distributing a held fluid. A rod for applying graduations occupies and regulates the volume part of the container in order to accurately regulate the volume of the fluid distributed by the measuring modules. In one specific embodiment, a mixer includes many measuring modules, to which outputs are together connected, in order to produce a mixture determining constitution by the capacities corresponding to the containers of various measuring modules. In order specific embodiment, one mixer dilutes a chemical concentrated liquid and further dilutes the mixture to supply the diluted mixture to another mixer.