Pool hydraulic design, pressurised pipework and testing for builders

Hydraulic design and clear division of responsibility

Villa developers and building contractors often prefer to cast the concrete pool shell with their own crew while bringing in a specialist subcontractor for the water engineering. We handle the hydraulic package so your pool circulates properly and buried pipe damage is found before the concrete sets.

• Calculating circulation flow, pump and filter sizing, and pipe routing for domestic skimmer and overflow pools, including hydraulics designed for the height when the pump room sits above water level
• Specifying the positions of floor and wall inlets, main drains, vacuum points, overflow channels and balance tanks
• When we handle the hydraulics alone, structural design stays with your structural engineer
• When we design the whole pool, the shell is designed and signed by a licensed engineer who is our partner

Pressurised cast-in pipework, testing and pump rooms

A pipe damaged during concreting is hard to reach once the shell has set. We hold the pipe network under pressure throughout the pour, so any damage shows straight away.

• Embedded pipes and fittings coordinated with your construction team
• Pipework pressure testing coordinated with the builder
• Carrying out independent pressure testing and quality acceptance with a written record for buyers or developers checking a finished pool built by another contractor
• Installing and commissioning the pump room equipment after the pool finish is complete, whether finished by your team or in PebbleCrete by us, with electrical work carried out by a licensed electrician agreed with the owner

Water levels, site staging and how we coordinate

We align our visits with your site engineer around reinforcement, concrete pouring and surface finishing. For existing pools requiring an acceptance test, an inspection decides whether the pool must be drained or tested with water lowered, and the programme is agreed for the individual project.

• Dry shell construction: first-fix pipework, pressure holding during the pour and pump room assembly take place before the pool is filled
• With water lowered or pool drained: independent pressure testing of an existing pool depends on access to inlets and main drains, confirmed at inspection; draining in the wet season or with high groundwater needs care, and while pressure tests check the pipework, we cannot promise to find every leak without opening the structure

What to send for a first discussion

Send us your project details so we can review the hydraulic scope with your team.

• Architectural or structural drawings of the pool and pump room, or site photos if construction has started
• The project location, pool size and whether it is a skimmer or overflow pool
• What you want us to handle: hydraulic design, pressurised cast-in pipework, independent pressure testing, pump room commissioning or the PebbleCrete finish