How to Replaster A Pool
- 1). Before starting any pool repairs, turn off the swimming pool equipment and drain the pool, then use a sump pump to drain any remaining water. You can rent a sump pump from a local home improvement store if you don't already have one.
- 2). Remove any dirt and debris from the swimming pool. This includes removing algae with a large sponge and an eco-friendly cleaning solution.
- 3). Inspect the pool surface to locate and mark any plaster areas that are flaking, peeling off or popping up. This is a key step to successful pool renovation. If you do not identify all the problem areas, you may have do the pool replaster again!
- 4). Remove the loose plaster with a chisel or putty knife. Be sure to remove any loose plaster around the swimming pool tiles, pumps, lights, drains and connectors. Clean up the debris and remove it from the pool. You can also use a chipping gun or a jack hammer to remove old plaster, but be careful not to crack the pool shell! You should hire a pool company to do this step if you aren't comfortable removing the old plaster by yourself.
- 5). Sand any sharp edges where you chipped away the pool plaster. This helps create a smooth surface for replastering. Sweep up all dust and debris and remove it from the swimming pool repair area.
- 6). Spray or pour an acid wash on the swimming pool surface. You can use an acid brush or push broom to spread the acid wash around as needed. The acid wash etches and pits the old plaster and creates a rougher surface for the new plaster to adhere to.
- 7). Thoroughly rinse off the acid wash with a garden hose and let the pool surface dry completely. Use the sump pump to remove excess water from the bottom of the swimming pool and be sure to dispose of the acid wash water properly (not down the city drain). Consider using a screen on the sump pump so plaster debris does not clog it up.
- 8). Using a paint roller, apply a bond coat to the pool surface to prepare it for replastering. Let the bond coat dry overnight.
- 9). Mix the pool plaster according to the manufacturer's directions, then use a stainless steel pool trowel to apply it to the pool surface in 4 foot square sections. Start at the deep end and make sure the applied plaster is 3/8" thick. Be sure to evenly cover the surface and fill in any cracks or damaged areas as well. Also make sure you don't apply wet plaster to an edge of set plaster. Applying pool plaster requires a lot of help, so be sure everyone is on site before you start.
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Let the pool plaster dry according to the manufacturer's directions. - 11
Mix the finish pool plaster and use a stainless steel pool trowel to apply plaster in 4 foot square sections with ¼" thickness. Use a separate trowel to carefully smooth the finish plaster, then let it dry for 24 hours before completing any additional pool repairs. - 12
Check the pool surface for cracks or uneven surfaces and apply plaster as necessary. Let the plaster dry completely before applying pool paint. - 13
Paint the pool with pool paint and let it dry completely. - 14
Fill the pool with water and chlorinate as necessary. With proper pool maintenance, you can enjoy the newly replastered pool for many years to come!
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