Start-Up

For both pool builders and owners embarking on a venture involving the application of a new plaster finish, an intricate understanding of the start-up procedure is paramount. These guidelines, endorsed by the National Plasters Council (NPC), serve as a foundational framework essential for safeguarding the integrity of the pool and extending the lifespan of its finish. This article delves into the pivotal steps concerning the initial water filling process and subsequently expounds on the meticulous 28-day start-up protocol.

Typically, the onus of adhering to these procedures rests with the remodeling company or builder, who must meticulously follow the guidelines to uphold the pool finish warranty. However, pool owners should acquaint themselves with this intricate process, recognizing its significance in the investment they are making.

**Understanding the Pool Finish Start-Up Procedure:**

A start-up procedure encompasses the 28-day regimen dedicated to nurturing a new pool plaster finish once the pool is filled with water. During this critical period, regular water testing, chemical equilibrium maintenance, careful brushing to eliminate plaster dust, and a cautious approach to automated equipment usage become imperative.

The instantaneous hydration of pool plaster upon mixing underscores its inherent sensitivity, with approximately 86% of the cement in the plaster curing within the initial 28 days. Hence, the judicious filling and diligent start-up maintenance constitute crucial facets of any new pool plaster project.

**Essential Tools and Materials:**

1. A comprehensive test kit covering pH, Total Alkalinity, Calcium Hardness, Cyanuric Acid, and Chlorine.

2. High-quality pole, net, and brush.

3. LSI Adjustment Charts, employing the Langelier Saturation Index (LSI) method for precise water testing and balancing.

4. Chemicals: Water, Muriatic Acid, Sodium Bicarbonate, Calcium Hardness Increaser, Sequestering Agents, Chlorine Products, and Stabilizer.

**Before Initiating the Process:**

- Strict adherence to each step in this guide is imperative; skipping steps is discouraged.

- Chemicals should never be mixed directly with water; always dilute them in a separate container.

- Avoid shocking the pool for the first 30 days.

- Refrain from swimming until the water achieves proper balance.

- Defer the use of a pool heater until all plaster dust has been completely removed, typically between day 4 and day 10.

- Postpone the use of certain devices until after the 28-day startup, as detailed in the guidelines.

**Fill Day Preparation:**

The Fill day precedes the 28-day startup and can take between 18 and 36 hours to complete. Key considerations include ensuring operational filtration equipment, removing floor return heads, testing fill water, and employing specific techniques to minimize potential damage during filling.

*Fill Day Steps:*

1. Fill the pool swiftly to the specified water level, avoiding interruption to prevent visible lines.

2. Utilize techniques to soften the impact of the water during filling.

3. Ensure pool finish does not dry out before being submerged.

4. Avoid spa water flowing into the pool.

5. Conduct tests on fill water and record results.

6. Initiate the filtration system immediately upon reaching the specified water level.

**1st Day:**

*Key Tasks:*

1. Test fill water and record results.

2. Adjust high alkalinity using pre-diluted Muriatic Acid.

3. Adjust low alkalinity using sodium bicarbonate.

4. Adjust pH to 7.2-7.6 if alkalinity is already 80-100 ppm.

5. Thoroughly brush the entire pool surface twice daily.

6. Optional addition of a sequestering agent for metal protection.

7. Continuous operation of the filtration system for a minimum of 72 hours.

8. Avoid chlorine addition for 48 hours and refrain from turning on the pool heater until plaster dust is eliminated.

**2nd Day:**

Repeat tasks of the 1st day, adjusting alkalinity, pH, and brushing, with chlorine addition now permitted.

**3rd Day:**

Repeat tasks of the 1st day, adjusting alkalinity, pH, and brushing.

**4th through 28th Day:**

Continued testing and adjustments for pH, Carbonate Alkalinity, and Calcium Hardness.

*Special Considerations:*

- Gradual adjustment of calcium levels over 28 days.

- Cyanuric acid adjustment after the 4th day.

- Removal of any remaining plaster dust on the 7th day using a brush pool vacuum.

**After 28 Days: Daily Water Chemistry:**

Post the initial 28 days, continual maintenance involves testing and adjustments to maintain the Langelier Saturation Index (LSI) between 0.0 and +0.3. This ensures day-to-day balance and avert potential issues with the pool surface.

*Disclaimer:*

These procedures, endorsed by the National Plasters Council, are rooted in sound technical practices within the industry. They are advisory and non-binding, with the NPC not regulating or monitoring their enforcement. Members and others are encouraged to adhere to these guidelines for optimal pool finish maintenance.