Swimming Pool (C-53) · Lesson 8 of 8

New Residential Pools: Choosing Two of the Seven Safety Features

"New Residential Pools: Choosing Two of the Seven Safety Features" is lesson 8 of 8 in the Swimming Pool (C-53) Learning Hub. It opens with "The Rule: At Least Two of Seven" and works through 6 short steps, then a worked example you can check yourself against.

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Steps in this lesson

  1. The Rule: At Least Two of Seven
  2. Features 1 to 4: Enclosure, Mesh Fence, Cover, Exit Alarms
  3. Features 5 to 7: Door Device, Pool Alarm, Other Means
  4. Combinations That Do Not Count
  5. Two Heights to Keep Straight
  6. Your Duties as the Pool Contractor

The worked example in the course applies this lesson to a realistic job in 7 steps, starting with "Heights check if package E later adds a self-latching door device".

What you'll be able to do

  • Explain the main idea of "New Residential Pools: Choosing Two of the Seven Safety Features" in plain language you can use on the exam.
  • Apply this step with confidence: "Features 5 to 7: Door Device, Pool Alarm, Other Means".
  • Apply this step with confidence: "Combinations That Do Not Count".
  • Apply this step with confidence: "Two Heights to Keep Straight".
  • Apply this step with confidence: "Your Duties as the Pool Contractor".
  • Test yourself on the worked example and the quick-check quiz inside the classroom.
Two of Seven Safety FeaturesNew or remodeled pool or spa at a single-family home (HSC §115922)1Enclosure (fence, §115923)2Removable mesh fence + gate3Safety pool cover (F1346-23)4Exit alarms on doors/windows5Self-latching door, 54 in. release6Pool alarm (ASTM F2208)7Other means, lab verifiedRed brackets: pairs that never count as twoSIX PROPOSED PACKAGESA1 + 3PASSES: enclosure + safety coverB4 + 5 same doorFAILS: excluded (b)(1)C4 + 5 separate doorsFAILS: excluded (b)(2)D3 + 6FAILS: excluded (b)(3)E2 + 6PASSES: mesh fence + pool alarmFchild wristband + 1FAILS: only one featureAt least two of seven | 19 of 21 pairs are not excludedNever two: 4 + 5 (any doors) and 3 + 6. Door device release 54 in. above floorFence gate latch: 60 in. above ground (§115923(a))HSC §§115922, 115923, 115924 in 2025 CRC Appendix CICC
The diagram for this lesson, exactly as it appears in the Learning Hub.

The first steps of this lesson

Step 1: The Rule: At Least Two of Seven

HSC §115922(a), printed in 2025 CRC Appendix CI (as amended effective January 1, 2025), says that when a building permit is issued for a new swimming pool or spa, or the remodeling of an existing one, at a private single-family home, it shall have at least two of seven drowning prevention safety features. "Swimming pool" means any structure for swimming or recreational bathing containing water over 18 inches deep, including hot tubs, spas and portable spas (§115921). Before final approval the local building official inspects the features (§115922(c)). The rule does not apply to public pools, to hot tubs or spas with locking safety covers complying with ASTM F1346, or to an apartment complex or any residential setting other than a single-family home (§115925).

Step 2: Features 1 to 4: Enclosure, Mesh Fence, Cover, Exit Alarms

(1) An enclosure that meets §115923 and isolates the pool or spa from the house; the fence and gate geometry is taught in the C-13 Fencing lessons. (2) Removable mesh fencing meeting ASTM F2286 with a self-closing, self-latching gate that can take a key lockable device. (3) A manual or power safety pool cover labeled as meeting ASTM F1346-23. (4) Exit alarms on the house's doors and windows that open directly to the pool, sounding a continuous audible alarm or a repeating verbal warning when opened or left ajar; battery or wired.

The remaining 4 steps, the worked example and the quiz are in the course. This is a preview. The full lesson, with the step-by-step explanations, a worked example and a quick-check quiz, is inside the classroom.

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