Repairing cracks in concrete pools
Unlike vinyl pools and fiberglass pools, swimming pools made of concrete can develop more cracks if the initial mixture used while plastering is not good enough. Concrete swimming pools can develop cracks that can grow bigger over time and cause further damage. When you discover the cracks, make sure you repair them immediately. With the help of some basic tools and plastering mixture, you can repair these cracks yourself. Get the facts about concrete pool
Enlarge the crack on the pool about half an inch more than its original depth and clear all the dust and sand particles. The crack also has to be widened from both ends. Apply caulk in to the widened crack. Caulk will help to make it water tight and prevent water from seeping in to the crack. Water can weaken the wall if it goes inside through pores. The caulk contains water, so after applying the caulk, you should leave it for some time to dry. Leave space to apply plaster in to this crack.
Once the caulk is dry, you can make the mixture to plaster the crack. This mixture should contain sand, white Portland cement, bonding agent and required amount of water to make the mixture semi-solid. Now sprinkle water on to the caulked crack and apply this mixture that fills the crack completely without any space for air or water. This should be leveled with the surface of the pool. Keep the newly plastered surface moistened for a long time to make it set properly. This is an easy process and you can continue to enjoy swimming in the repaired pool.
Repairing the Plaster of Concrete Pools
Repairing the cracked plaster of your pool might take more effort from your side than fixing up the small cracks. Check the areas where the plaster has come loose and remove these plasters with a hammer and chisel. Do not disturb the solid parts but only remove parts which have already broken off or are on the verge of a break off. The process of exposing the underneath layer of your plaster is called acid wash. After doing acid wash, measure the area which has to be repaired. Make pool patch for this area. To make a pool patch, mix one-third of Portland cement and two-thirds of sand. Add a bonding agent and mix them well with water to make it semi-solid.