How Pools Work & Get Built

How an inground pool is built, step by step, and how its pump, filter, and sanitation keep the water clean. Below are the Ballpark Lab guides in this topic — each one pairs plain-English answers with the calculator that gives you the number.

How it works

Pool Features: What's Essential vs. Optional (2026 Guide)

Which pool features are truly essential and which are optional upgrades? A clear breakdown of the must-haves, the safety fence the law requires, and the extras worth paying for.

Updated June 30, 2026

How it works

How an Inground Pool Is Built, Step by Step (2026 Guide)

A clear, step-by-step walk-through of how an inground pool is built — design, excavation, the shell, equipment, finish, and how the water system actually works.

Updated June 30, 2026