Total Dynamic Head (TDH) for PVC Plumbing Circuits
Saved Pools
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Pool Information
Residential: 6-8 hrs • Commercial: 4-6 hrs
Positive (+) = water must rise (e.g., raised spa, elevated feature, solar panels on roof) • Negative (−) = water drops back down (gravity helps)
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Plumbing Circuits
3
Equipment (check all that apply per circuit)
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Results
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Filter & Pump Sizing
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Reads pool volume & turnover from above. Select a filter type to see minimum sizing, recommended models, and required flow rate. Reference: PHTA Builder's Manual 5th Ed, Chapter 5 — Tables 5-34, 5-35
Calculated Requirements
Required Flow
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GPM
Min Filter Area
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sq ft
Design Velocity
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ft/sec in 2" pipe
ANSI Compliant
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Res. pool ≤ 12 hr
Matching Filters from PHTA Capacity Tables
No matches.
Pipe Velocity at This Flow Rate
$
Plumbing Cost Estimator
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Pricing from your plumbing sub's price list. Pipe footage auto-reads from your circuits above. Adjust quantities and add extras below.
Base Packages
Pipe Footage (PVC per LF — auto-synced from circuits)