NO NO !! You must remove the vinyl completely and then check what substrate you have. Concrete plaster or brick will be fine.
By putting a thin layer of new concrete on top.
How do yo resurface or replaster and old pool
The cost to resurface a gunite pool depends on your location, the size of your pool, and exactly what you want done. On average, as of 2014 it cost between $8,000 and $15,000 to resurface a pool.
My patio is cracked very badly. Can I get the concrete resurfaced or do I need to redo it?
It doesn't usually cost much to resurface concrete, its generally quite cheap and can be found at your local builders supplies yard. Sites like flexcrete can also be of some use.
Marcite is a "plaster" made from marble dust and white cement. It's put on top of the gunite and gives the pool a smooth finish and bright luster.
To re-marsite a pool, begin by draining the pool and thoroughly cleaning the surface to remove debris, algae, and old plaster. Next, repair any cracks or damage in the concrete structure. Once the surface is prepared, mix the marcite (a mixture of white cement and marble dust) according to the manufacturer's instructions, then apply it evenly with a trowel, ensuring smoothness and consistency. Finally, allow it to cure properly before refilling the pool with water.
No. An older (possibly better) type of Fiberglass pool was constructed in this manner, with a concrete/Gunnite/Marcite trowled bottom and Fiberglass panels at the side of the pool. Panels are caulked together along vertical joints. Actually not a bad deal, but caulked joints must be maintained. Once the concrete starts showing through at the bottom of the pool, its time to drain and resurface. Bottom of pool should be acid washed every 3-5 years to keep it sparkling and remove mold, mildew, stains. If bottom surface is chipping off, its getting close to time to resurface bottom of pool. Bottom is treated just like any concrete/gunite/Marcite pool surface. Sides are simply brushed, caulked in timely manner.
To resurface concrete for a smooth and durable finish, first clean the surface thoroughly. Then, apply a concrete resurfacer according to the manufacturer's instructions, using a trowel to spread it evenly. Allow it to dry completely before applying a sealant for added durability.
A concrete pool is better any where if it is done professionally.
There does not appear to be anything that can be put in your pool to redeye your concrete in the pool dark blue. This can only be achieved by draining the pool and painting the concrete a dark blue color.