How to Smooth Pool Plaster

A swimming pool with a plaster liner is generally more durable than one with a vinyl liner, for example. This is because unlike vinyl, plaster will not rip or tear to create a leak in your swimming pole. However, sometimes the plaster liner of your swimming pool might need to be repaired. If you must repair a dent in your plaster, one of the most important parts of the process is to get the plaster smooth. Otherwise, it could harden into a point that can potentially hurt someone.

Chisel
Hammer
Plaster mix
Acrylic bonding agent
Water
Pool trowel
Spray bottle

Instructions

- 1
  Drain the water in your pool until you can access the area that needs new plaster.
- 2
  Place a chisel over the area of plaster that needs repair. Hit the back of the chisel with a hammer to remove loose pieces. Otherwise, you won't be able to get the plaster smooth.
- 3
  Continue chiseling to create a small hole in the plaster. Angle the hole outward so that the new plaster can be smoothed inside and stick better.
- 4
  Add together plaster mix, acrylic bonding and water. Mix with your pool trowel until it's as creamy as peanut butter.
- 5
  Fill a spray bottle with water, and spray the side of your pool that you chiseled out. The new plaster will smooth better over a damp surface.
- 6
  Use the pool trowel to apply the plaster mix to the area. Push the plaster into the chiseled-out area to remove air.
- 7
  Place one end of the trowel against the hard plaster and scrape it across the new plaster to smooth it.
- 8
  Let the plaster set for 15 minutes. Repeat the smoothing process. Push harder at the edges so that the new plaster is smoothed perfectly against the old.
- 9
  Continue spraying the new plaster with your spray while you fill up your pool. The plaster cures better and stays smooth if it remains moist.

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