Gunite, cement does not rust.
Gunite pools require a lot of maintenance. This includes the draining of the pool once per year, special chemicals, and fixing the cracks in the granite at least once per year.
It is quite extensive see related link and download the document- Pool Maintenance
Either gunite or fiberglass will work well for an indoor pool.
Pebble sheen is the finish on the surface of a pool gunite is the cement that a pool is constructed from in other words you can finish a gunite pool with pebble sheen.
A fiberglass pool requires less maintenance, less repairs structurally in the future, is quick to install, and is good for smaller pools. Gunite pools are better for a pool deeper than 8 feet, custom shapes, and is a bit harder on the feet than a fiberglass pool.
This very subject has been debated for years. I can tell with full confidence, that gunite is much better than shotcrete. Both are good depending on the builder.. I can tell you with full confidence, having worked for more than thirty years with both gunite and shotcrete that shotcrete is far superior to gunite. Shotcrete will test out stronger, to much room for human error with gunite.
They are not competing / alternative products. Hydrazzo is an interior finish. It is one of several aggegate based plasters that go on top of gunite (concrete).
Lack of filtration and or improper chemical levels Improper filtration or bad chemical maintenance.
there is a product called "pebble tec" that is great. better than both products you mentioned. it is a little more expensive, but looks and lasts much better. other wise i would stay with plaster. from what i understand it adhears better to the gunite.
No. Gunite is concrete.
Gunite is cement that anyone can make in their backyard. Concrete is manufactured at a plant to plus or minus 0.05% tolerance and delivered to the job site in a constantly turning concrete truck. Concrete (aka shotcrete) is far superior to cement (gunite). -Bill