Good afternoon! New boy on the block. I'm trying to gather information with regard to my Blake no 2/3 1"and half inches inlet dia, Hydraulic Ram. The down pipe (pipe running from header tank to ram) after a few years becomes very rough on the inside of the pipe. The pipe was originally installed by a Ram supplier. Due to its roughness the water volicity becomes compromised and energy is lost. I was wondering whether I can reinstall a new stainless steel pipe that would see me out. 10 metres of pipe to replace. What thickness of new pipe would suffice, without water hammer/vibration effecting the delivery amount and also wear and tear on the system. Any advice would be more than welcome as I have not been able to find any. Yours Bruce