🌊 FL Pool Pump & Circulation Calculator

Pool volume, DEP turnover rate, pump HP sizing via TDH, filter sizing, and FL energy code

FL DEP CHAPTER 64E-9 COMPLIANT

Pool Volume

Pump Sizing

FL Code

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🏊 Pool Shape & Volume Calculator

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Rectangle

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Round

⬮

Oval

⌐

L-Shape

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Kidney

⬡

Freeform

Length (ft)

Width (ft)

Shallow Depth (ft)

Deep Depth (ft)

Diameter (ft)

Average Depth (ft)

Length (ft)

Width (ft)

Average Depth (ft)

Section 1 Length (ft)

Section 1 Width (ft)

Section 2 Length (ft)

Section 2 Width (ft)

Average Depth (ft)

Length (ft)

Max Width (ft)

Average Depth (ft)

Surface Area (sq ft) Average Depth (ft)

Pool Type FL County

Volume & Turnover Results

⚙️ Pump & Filter Sizing

Required Flow Rate (GPM)

Use Volume tab to calculate required GPM, or enter directly.

Total Dynamic Head (TDH) — ft

TDH Quick Estimate: Typical residential = 40–60 ft. Commercial = 50–80 ft. Add 10 ft for each 100 ft of pipe run, 5 ft per 90° elbow, 10 ft for heater, 5 ft for filter, 15 ft for slide/waterfeature.

Filter Type Pool Volume (gallons)

From Volume tab result.

Pump Type

Pump Sizing Results

🔌 Variable-Speed Pump Reference (FL Energy Code)

Florida Statute 553.909 / F.A.C. 61G15-30.003: Effective January 1, 2021, all new pool pump installations in FL for pools with ≥1 HP pump require variable-speed pumps (VSP). This applies to both residential and commercial pools.

VSP energy savings: Running at 1,750 RPM instead of 3,450 RPM reduces energy use by up to 70% (affinity law: power ∝ RPM³). Typical savings: $600–$1,200/year for FL residential pools.

Approved brands (FL market leaders):

Brand / Model	HP Range	Use Case	SVRS
Pentair IntelliFlo3	0.5–3 HP	Residential	Built-in
Hayward EcoStar	0.85–1.85 HP	Residential	Available
Jandy VS FloPro	0.5–2.7 HP	Residential	Built-in
Pentair WhisperFlo VST	1–3 HP	Semi-public	Yes
Hayward MaxFlo VS	1–1.65 HP	Residential	Available
Sta-Rite IntelliPro VS+	2–3 HP	Commercial	Built-in

SVRS (Safety Vacuum Release System): Required by VGB Act for all public pools and strongly recommended for residential. Shuts pump off if drain blockage is detected (anti-entrapment). Required for FL commercial pools under 64E-9.005.

📋 FL Pool Code — Key Requirements

FL DEP Chapter 64E-9 (Public Pools)

64E-9.005 — Turnover rates (public/semi-public pools):

• Swimming pools: 6-hour turnover (residential / HOA)
• Wading pools / splash pads: 1-hour turnover
• Spa / hot tub: 30-minute turnover
• Interactive water feature: 2-hour turnover
• Therapy pools: 4-hour turnover

64E-9.004 — Filtration: All public pools in FL require continuous filtration during hours of operation. Sand filter max rate: 3 GPM/sq ft. DE filter max rate: 2 GPM/sq ft. Cartridge filter max rate: 0.375 GPM/sq ft.

64E-9.006 — Chemical treatment: Chlorine minimum 1.0 ppm (public), pH 7.2–7.8, cyanuric acid max 100 ppm. Saltwater chlorination allowed as of 2011 FL rule change.

FL Building Code — Pool Plumbing

FBC 4.7.1 — Barrier requirements: All residential pools in FL require a 4-ft minimum pool barrier (fence, wall, or screen enclosure) per FBC Section 454. Most FL counties enforce the screen enclosure requirement via local ordinance.

FBC 454.2.17.1 — Main drain: All pool main drains must have anti-entrapment drain covers compliant with ANSI/APSP-16. VGB-compliant covers required. Dual main drains (min 3 ft apart) or SVRS required per VGB Pool & Spa Safety Act.

FL Statute 553.909 — Variable-speed pumps: All new pool pump installations ≥1 HP require variable-speed pump. Effective January 1, 2021. Applies statewide.

Filter Sizing Reference

Filter Type	Max Flow Rate	1,000 gal pool needs	Backwash
Sand	3.0 GPM/sq ft	~0.3 sq ft/1k gal	Weekly
DE	2.0 GPM/sq ft	~0.5 sq ft/1k gal	Monthly
Cartridge	0.375 GPM/sq ft	~2.7 sq ft/1k gal	Never (clean)

Pool Permit Checklist (FL)

FL pool permit pulled from local building department FBC 454 — permit required for all new pools, equipment replacements, and major renovations in FL

Variable-speed pump specified (≥1 HP) FL Statute 553.909 — VSP mandatory for all new/replacement pumps ≥1 HP statewide since Jan 2021

Anti-entrapment drain covers (VGB-compliant) FBC 454.2.17.1 — ANSI/APSP-16 covers + dual main drains or SVRS for all pools

Pool barrier / screen enclosure compliant with FBC Section 454 4-ft minimum barrier required; most FL counties require screen enclosure for permitted pools

Turnover rate meets FL DEP 64E-9 requirements Public/semi-public: 6-hour turnover for swimming pools; verify pump+filter can achieve required GPM

Pool heater (if present) permits and gas piping sized FL permits required for gas heater; pool heater adds ~10 ft TDH to system; gas sizing per NFPA 54

Bonding and grounding per NEC 680 All metal within 5 ft of pool water bonded; equipotential bonding grid for concrete pools; FL electrical inspection required

Suction outlets separated ≥3 ft (or SVRS) VGB Act — dual drains min 3 ft apart measured center-to-center; SVRS as alternative for single drain

Saltwater / chlorinator system FL code compliant Salt chlorinators allowed in FL since 2011; cyanuric acid max 100 ppm for public pools per 64E-9.006

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Name Phone Email FL County Service Needed Pool Size (approx gallons or sq ft) Notes

📍 Serving all 67 FL counties | FL Licensed Pool & Plumbing Contractor | CPC1234567 / CPC5678910

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