Epyt Toolkit error

I am trying to model “Net1” existing in EPANET2.2 by the data imported to Python, when I want to add the data of the tank, for tank diameter which is equal to 50.5, one error has occurred. This error indicates that we can not add Tank with diameter in float digit just we can add in integer digit.
I think it would be better to solve the problem in the following versions.