Swimming Pool Inspection

Per provincial pool enclosure regulations (e.g., Ontario Reg. 565, municipal pool fence bylaws) and NBC, all outdoor residential pools must be enclosed by a barrier a minimum of 1.2 m (48 in.) high that restricts unsupervised access by young children. Gates must be self-closing and self-latching with the latch on the pool side at a minimum height of 1.5 m. The barrier must not have climbable features, and openings must not permit passage of a 100 mm sphere. Indoor public pools must comply with NBC Part 3 for occupant safety.

1. Verify the pool enclosure barrier is a minimum 1.2 m high measured on the outside face, continuous around the entire pool area

2. Confirm gates are self-closing and self-latching with the latch mechanism on the pool side at minimum 1.5 m above grade

3. Check that no openings in the barrier permit passage of a 100 mm sphere and there are no climbable horizontal rails below the top

4. Verify no structures, trees, or objects adjacent to the barrier provide a climbing aid to bypass the enclosure

5. Confirm the barrier extends to within 50 mm of grade with no gap that would permit a child to crawl under

- Barrier height below the 1.2 m minimum due to grade changes on the exterior side

- Gate latch not self-closing or not self-latching allowing uncontrolled access

- Horizontal fence rails providing footholds for climbing

- Adjacent structures or landscaping features enabling barrier bypass

Per CSA A23.1 and NBC Part 4, concrete pool shells must be designed and constructed to resist earth pressure, hydrostatic pressure, and applicable live loads. Shotcrete or gunite shells must achieve a minimum compressive strength of 30 MPa at 28 days. Reinforcement must comply with CSA A23.3. Fibreglass and vinyl-liner pools must be installed per manufacturer's specifications on a properly prepared and compacted base.

1. Verify concrete pool shell reinforcement placement and cover per CSA A23.3 and the structural engineer's design

2. Confirm shotcrete or gunite compressive strength test results meet the minimum 30 MPa at 28 days per CSA A23.1

3. Check for visible cracks, delamination, or structural distress in the pool shell that may indicate settlement or design deficiency

4. Verify the pool shell is plumb and level with the waterline tile or coping at the correct elevation

5. Confirm the pool base is properly prepared and compacted for fibreglass or vinyl-liner installations per manufacturer's requirements

- Shotcrete applied too thin or with rebound material left in place reducing strength

- Insufficient reinforcement cover leading to corrosion and surface spalling

- Differential settlement causing structural cracking in the pool shell

- Vinyl-liner pool walls bowing due to inadequate backfill compaction or bracing

Per CSA C22.1 (CEC) Section 68, all metal components within 1.5 m of the pool water's edge must be bonded together. This includes the pool reinforcing steel, metal coping, ladders, handrails, diving boards, light niches, pump motors, and metal piping. All pool electrical equipment must be protected by ground fault circuit interrupter (GFCI) devices. Receptacles within 3 m of the pool edge must be GFCI-protected. Overhead conductors must maintain minimum clearances per Section 68.

1. Verify all metal components within 1.5 m of the pool edge are bonded with a minimum No. 6 AWG copper conductor per CEC Section 68

2. Confirm pool pump, heater, and other electrical equipment are GFCI-protected and installed at the required minimum distance from the pool edge

3. Test all GFCI devices for proper operation using the test button and a GFCI tester

4. Check that no overhead electrical conductors pass within the minimum clearance zone above the pool per CEC Section 68

5. Verify underwater lighting is installed in listed niches with GFCI protection and operates at approved voltage (typically 12V)

- Bonding conductor not connected to the pool reinforcing steel or metal components

- GFCI protection missing on pool pump or receptacles within 3 m of the pool

- Underwater light fixtures not GFCI-protected or installed in non-listed niches

- Overhead conductors within the restricted clearance zone above the pool area

Per provincial pool regulations and CSA standards, the pool circulation system must be capable of turning over the entire pool volume within the required period (typically 6 hours for residential, 4 hours for public pools). The filtration system must maintain water clarity per provincial health standards. Pump and filter sizing must match the pool volume and desired turnover rate. All plumbing connections must include backflow prevention per the National Plumbing Code.

1. Verify pump and filter sizing are adequate for the pool volume and required turnover rate per provincial regulations

2. Confirm the circulation system provides proper water distribution with no dead zones and adequate skimming action

3. Check that the backflow prevention device is installed on the pool fill line per the National Plumbing Code of Canada

4. Verify filter pressure gauges are functional and the filter achieves the required flow rate at design pressure

5. Confirm all valves are labelled and accessible for maintenance and emergency shut-off

- Pump undersized for the pool volume resulting in inadequate turnover rate

- Dead zones in the pool with poor circulation leading to algae growth

- Backflow preventer missing on the pool fill line risking cross-contamination

- Filter pressure gauge non-functional preventing assessment of filter condition

Per provincial pool safety regulations and CSA standards, all pool and spa main drain covers must be anti-entrapment rated and compliant with ASME/ANSI A112.19.8 or equivalent CSA standard. Pools with single main drains must have a safety vacuum release system (SVRS) or equivalent anti-entrapment device. Drain covers must be secured, in good condition, and replaced before the expiry of their rated service life (typically 7-10 years).

1. Verify all main drain covers are anti-entrapment rated per ASME/ANSI A112.19.8 and properly secured with tamper-resistant fasteners

2. Confirm drain cover markings show the rated flow, manufacturer, and expiry date — replace if expired

3. Check that pools with a single main drain have a safety vacuum release system (SVRS) installed and operational

4. Verify dual main drains are spaced at least 900 mm apart (centre to centre) per anti-entrapment standards

5. Test the SVRS by blocking the drain to confirm it releases vacuum pressure within the required response time

- Drain covers missing, broken, or past their rated service life

- Single main drain without an anti-entrapment safety vacuum release system

- Drain covers not secured with tamper-resistant screws allowing removal

- SVRS installed but not tested or not functional

Per NBC and provincial pool regulations, pool decks must provide a slip-resistant surface and be graded to drain away from the pool. The deck must slope a minimum of 2% away from the pool edge to prevent surface water from entering the pool. Depth markings must be permanently displayed at the pool perimeter at maximum 7.5 m intervals. Diving areas must comply with minimum depth and clearance requirements per CSA and manufacturer's specifications.

1. Verify the pool deck surface provides adequate slip resistance when wet (coefficient of friction minimum 0.5)

2. Confirm the deck slopes a minimum of 2% away from the pool edge toward deck drains or landscape areas

3. Check that pool depth markings are permanently installed, visible, and spaced at maximum 7.5 m intervals around the perimeter

4. Verify diving board installations comply with minimum water depth and overhead clearance requirements per manufacturer's specifications

5. Confirm safety equipment (life ring, shepherd's hook, first aid kit) is present and accessible per provincial requirements

- Pool deck surface too smooth when wet creating a slip hazard

- Deck graded toward the pool allowing contaminated surface water to enter

- Depth markings missing, illegible, or not placed at the required intervals

- Diving board installed over water that does not meet minimum depth requirements