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כיצד לחשב את Septic System Sizing

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Septic System Sizing Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

נוסחה

Tank Size = Daily Flow × Retention Time (min 2 days)

מדריך שלב אחר שלב

  1. 1Estimate daily wastewater flow per bedroom, size tank accordingly
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Worked Examples

קלט
3-bedroom home, 150 GPD/bedroom
תוצאה
Tank = 3 × 150 × 2 = 900 gallons → use 1000 gallon

Common Mistakes to Avoid

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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