 However, Gambier encountered difficulties in delivering their pipes due to the Franco-Prussian War, so most of their contract was transferred to nearby factories in Moravia.Many of the pipes were tested after being laid and were not up to standards, so the thickness of the pipe walls was increased and the general plan was revised to prevent water pressure from being too high in the low-lying areas.Due to a lack of water in 1873, Gabrielli was asked to accelerate his work so the supplies could be increased by no later than October.