I want to boost the shower in my bathroom via a salamander ct50 pump. All the plumbing to the pump is spot on but does it matter which way the pipe work is connect on the pump. Now obviously it is hot to hot and cold to cold but with no flow direction arrows on the pump I`m not sure if it is important to get the flow in the right direction. On the pump I`m not sure which side is the inlet and which side is the outlet? Your advice will be appreciated. Your help will be appreciated.