Potable and Reclaimed Water Lines: Utility Details That Matter

How potable and reclaimed water line sizing, testing, and hydrant placement get resolved on a Central Florida site, including how Foshee sequences wet utilities before a single foot of pipe goes in the ground.

On most Central Florida sites, potable and reclaimed water lines get treated as a detail to confirm during submittals. That is backwards. Pipe size, hydrant spacing, and the separation required between potable and reclaimed mains are decisions that shape trench depth, crossing sequences, and how many times a crew has to come back to the same stretch of ground. Get them wrong on paper and the field finds out the hard way, usually during a pressure test that will not pass.

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Foshee Construction has built and installed underground utilities across Lake County and Central Florida since 1994. Kevin and Cindi Foshee started the company in Minneola, and wet utility work — potable, reclaimed, and the coordination between the two — has been part of the scope the whole way.

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Where Reclaimed Water Changes the Plan

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Reclaimed water is not a side note on a water line job. It changes color coding, separation distances from potable mains, backflow requirements, and how crossings with sewer and reclaimed laterals get sequenced. A plan that treats reclaimed as an afterthought usually surfaces its problems at inspection, when a separation distance or a marking requirement does not match what the utility provider expects.

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Right now, that coordination is part of a project Foshee is not doing for a typical private developer. Foshee is partnering with Habitat for Humanity on an 8-lot community in Leesburg, and underground utility installation on that site is scheduled to begin in December 2025. Water service for a Habitat build has to be installed with the same rigor as any commercial job — sizing, testing, and inspection do not get relaxed because the end use is affordable housing. If anything, the coordination with the utility provider and the tight lot layout make sequencing more important, not less.

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The Installation Sequence, Step by Step

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1. Confirm main sizing against fire flow and demand. Hydrant spacing and fire flow requirements usually drive pipe size before domestic demand does. This gets settled before trenching, not adjusted after.

2. Lay out separation from reclaimed, sewer, and storm lines. Horizontal and vertical separation requirements dictate trench sequencing, especially where potable and reclaimed run in the same corridor.

3. Install and mark reclaimed lines to code. Purple pipe, tracer wire, and signage are not optional add-ons — they are inspected line items.

4. Set hydrants, valves, and services. Placement gets checked against the fire marshal's requirements and the utility provider's standards before backfill.

5. Pressure test and disinfect. Potable mains get pressure tested and chlorinated before they are accepted; reclaimed mains have their own testing standard. Skipping ahead here is how a schedule loses a week.

6. Coordinate final tie-ins and utility acceptance. The utility provider signs off before the line goes into service, and that sign-off depends on every step before it being documented correctly.

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Foshee uses HeavyBid and AGTEK during estimating to keep pipe quantities, trenching, and fitting counts accurate before the sequence above ever starts in the field.

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Frequently Asked Questions

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How far apart do potable and reclaimed lines need to be?

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Separation requirements vary by jurisdiction and utility provider, but they are non-negotiable. They get set in the plan review stage, not adjusted in the field.

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Does reclaimed water piping need to look different from potable piping?

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Yes. Reclaimed lines use distinct pipe coloring, tracer wire, and signage so crews and inspectors can identify them at a glance, both during construction and years later during maintenance.

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Why does hydrant placement affect the water line design?

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Fire flow requirements often size the main before domestic demand is even calculated. Hydrant spacing gets confirmed early because it drives pipe diameter, not the other way around.

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What happens if a pressure test fails?

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The section gets isolated, the leak or defect located, and the repair retested before backfill is finalized. It is far cheaper to catch this before paving or landscaping goes in over the top.

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The Bottom Line

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Potable and reclaimed water line work rewards teams that sequence separation, sizing, and testing correctly the first time. On a job like Foshee's Habitat for Humanity utility installation in Leesburg, starting in December 2025, that discipline matters just as much on an 8-lot community as it does on a large commercial site.

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To talk through a wet utility scope, reach the Foshee contact page - (https://fosheeconstruction.com/contact) or call the office line, which now routes through an AI phone system to the right team member at ext. 230.

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Related Reading

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- Utility Installation - https://fosheeconstruction.com/blog/utility-installation

- Underground Pipe Installation in Florida - https://fosheeconstruction.com/blog/underground-pipe-installation-florida

- 811 Utility Locates - https://fosheeconstruction.com/blog/811-utility-locates

- Site Preparation Services - https://fosheeconstruction.com/blog/site-preparation-services

- Foshee Projects - https://fosheeconstruction.com/projects

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