True or False: It is fairly easy to lose 50% of a pump's rated capacity due to bends and lengths of plumbing.

The statement is true because significant pressure losses can occur in a pumping system due to the friction caused by bends, fittings, and lengths of plumbing. As water moves through pipes, it encounters resistance, which leads to a reduction in flow rate. The longer the plumbing run and the more bends or obstructions present, the greater the friction loss. This can indeed result in a decrease in the pump's effective capacity, potentially reducing it by up to 50% or even more in certain circumstances.

When designing and installing plumbing systems for air conditioning and refrigeration, it's crucial to consider not only the pump's rated capacity but also the effects of the plumbing layout on flow performance. Thoughtful design that minimizes sharp bends, uses smooth transitions, and appropriately sizes pipe can mitigate significant losses. In essence, understanding these dynamics helps ensure that the system performs efficiently and meets the necessary specifications.