What are the actual components of a properly designed water system here?

Short answer: Four parts working together: a cistern (aljibe) for storage, a pressure pump system to
create usable pressure, pressure regulators to keep flow balanced, and a plumbing layout designed for
pipe diameter, routing, and simultaneous usage.
Why it matters: Buyers often think “get a pump” solves water pressure. In practice, even good
equipment performs poorly if the layout behind it wasn’t designed properly.
What to check:
● Confirm your design includes all four components, not just a pump
● Ask how simultaneous fixture usage (multiple showers, irrigation, etc.) was accounted for in the
layout
● Get pipe diameter and routing reviewed by someone experienced in local systems, not a generic
plumbing plan
Bottom line: Reliable water pressure is a system, not a single piece of equipment — all four parts need
to be designed together.