Pool Plastering Guide
What causes pool plaster to deteriorate?
1. Natural Aging and Wear
Over time, pool plaster ages and wears away naturally due to water exposure, chemical use, sunlight exposure, and pool use. Over time, it becomes more vulnerable to cracking, chipping, and discoloration as its surface wears down further.
2. Water Chemistry Imbalance
Poor pool water chemistry can play an important role in plaster deterioration. If water is not balanced properly, improper pH levels, alkalinity imbalance, or high calcium hardness levels can contribute to scaling, etching, staining, and eventual plaster breakdown.
3. Improper Pool Maintenance
Poor or inconsistent pool maintenance practices can contribute to plaster deterioration. A lack of regular cleaning, brushing, and maintenance routines allows debris such as algae to collect on the surface, causing further deterioration over time.
4. Chemical Imbalance or Misuse
Improper or excessive chemical use can damage pool plaster. Too much chlorine, harsh chemicals, or unbalanced chemical products may accelerate plaster deterioration. Following product instructions and maintaining proper chemical balance helps protect the pool surface.
5. Water Chemistry Changes
Sudden variations in water chemistry, such as increases or decreases in pH, alkalinity, or calcium hardness, can put stress on plaster surfaces and hasten their deterioration. Rapid water level fluctuations or untreated water can have similar consequences.
6. Freeze-Thaw Cycles
Pools in areas experiencing freezing temperatures should be protected against repeated freeze-thaw cycles. Repeated exposure to these extreme temperatures can damage plaster. As water freezes and expands, cracking or spalling of plaster can occur. Proper winterization measures and protection can help limit the potential impact.
7. Structural Issues
Structural problems in a pool may put stress on the plaster surface and result in cracking, delamination, or other forms of deterioration that may require replacement. Concerns should be addressed quickly to help minimize further damage to the plaster.
Pool Plaster Lifespan and Maintenance
The lifespan and durability of pool plaster varies based on plaster quality, proper installation, maintenance practices, and environmental influences. Regular monitoring, water chemistry balance, maintenance practices, and prompt repair of issues can help extend its lifespan and minimize deterioration.
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