The
EBC300Plus circulation pump is designed for remote dipensing systems such at major venues. You will be limited to how many lines you can circulate due to the amount of restriction or back pressure that exists in these long runs coupled with significant rises.
Apllying an even larger pump than the EBC300Plus will not be beneficial as your pressure from the pump is too high to compensate for this back pressure, you will damage the system by bursting lines or connections.