What Size Pool Do You Need for an Adult Immersion Baptism

Sizing a baptism pool correctly is the first technical question a church faces when equipping itself for the first time. A pool that's too small makes the moment awkward; one that's oversized complicates filling and transport.

Reference dimensions for an adult

To allow full immersion of an adult lying down, with room for the officiant to assist from either side of the pool, these dimensions are a solid baseline:

• Length: at least 79 in (200 cm), enough for a person lying down without restriction
• Width: 28 to 31 in (70 to 80 cm), enough room for the officiant's arms
• Water depth: 20 to 24 in (50 to 60 cm), enough to fully cover a candidate lying down

The Kollder portable baptistry follows exactly these proportions, at 205 × 80 × 60 cm (81 × 31 × 24 in) set up.

How much water to plan for

For a pool of these dimensions, plan for roughly 130 to 185 gallons of water depending on the fill level chosen. That volume can be reached with a standard garden hose in 15 to 30 minutes depending on flow rate, or with water containers where no hose access is nearby.

Unlike a medical cooling application, the water doesn't need to be cold: room temperature, or lightly warmed with hot water added to the mix, gives candidates a comfortable experience.

What about baptizing a child or teenager?

The same dimensions work, with the fill level simply adjusted to the candidate's size. A pool sized for an adult stays versatile for every age practicing immersion, with no need for a second piece of equipment.

Sizing built to last

Getting the size right from the start avoids having to replace equipment a few years in. That's the principle behind the Kollder portable baptistry, whose full specifications and technical details are on the portable baptistry for immersion baptism page.

Further reading

• How to Hold an Immersion Baptism Without a Pool or River
• Inflatable vs Rigid Folding Baptistry: Which One Fits Your Church
• Request a quote for a portable baptistry