In my opinion, none! Stick with Marcite.
I completely disagree. With 19 years experience in the restoration of older Swimming Pools, I have learned that fiberglass swimming pools are the best of the best.
My business is limited to older pools, so my expertise is in swimming pool longevity, therefor my answer is: If you expect to own the pool for more than 15 years, and if you can afford a gunite, concrete, or fiberglass pool, you should definitely choose fiberglass.
On the other hand, if price is the issue, you should choose a vinyl liner pool which will cost about half that of gunite, concrete, or fiberglass. Unfortunately, when you decide to sell, a vinyl liner pool will actually detract from the value of the home.
On a geographical basis, Florida is a great place for a fiberglass swimming pool, but so are the rest of the Continental United States. Location does not matter, regardless of what you may read in these forums. The only thing that does matter is that you never empty the pool without professional assistance. The same rule applies to vinyl liner pools.
The only advantage to gunite and concrete pools is that you can usually get away with emptying the pool without help. But even concrete and gunite pools can be seriously damaged if the pool is emptied without consideration for hydrostatic pressure.
Just like construction of a gunite, concrete, or vinyl liner pool is quite important, so is the installation of a fiberglass pool. It is not a DIY project for most people. Another important factor with fiberglass is the manufacturer of the pool. I consider the very best to be San Juan pools because no San Juan pool owner has ever contacted our company for restoration before the pool was at least 27 years old.
Finally, there is no such thing as a surface that will last a "lifetime", unless you consider a lifetime to be 20 years or less (excluding only San Juan). Frankly, I thought 20 years was a "generation", but the pool manufacturer's and builders seem to have the two terms confused. Fiberglass requires considerably less chemicals and far less maintenance that any other pool currently in existence.
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.
the cost for fiberglass pools are chaeper and easier to install.concrete pools are easier to maintain.a fiberglass pool may run you 3,000 to 10,000. A concrete pool run you 12,000 to 30,000 depending on the size and area of residence
Leisurepoolsusa.com provide a wide range of fiberglass inground swimming pools. Visit the website to see if this company has a dealership in your state.
Not usually. Sounds like a warranty problem. Contact the installer, builder, contractor. They will want to see pool.
NO Fiberglass salt water pools are a great system regardless of where you use them.
Not recommended. If the fiberglass pool floats, it will do considerable damage.
What type of existing swimming pool? You can patch an existing fiberglass pool.
An advantage of a fibreglass pool is that it would be light.Another advantage is that it would be strong. A disadvantage would be that it would be expensive.Another disadvantage is that it could be quite hard to repair smoothly when damaged
form_title= Fiberglass Pools form_header= Relax in the water with a fiberglass pool. Do you want a salt water pool?*= () Yes () No What size is your backyard?*= _  What is your budget for a pool?*= _ 
A fiberglass pool is far superior to a vinyl liner pool. It is also about twice as expensive.
Either gunite or fiberglass will work well for an indoor pool.
i have a12x 25 fiberglass pool and it cost me 13,000 with istallation. check out floridanorth.com
Yes, fiberglass pools have a smooth finish. Where a concrete pool was a pourus and rougher finish that gives alge something to grab on to. Also staining it. A low calcium level can pit a concrete pool, not a fiberglass, plus a fiberglass pool is more flexible,so ground movement wont crack it. In the long run the extra money you pay for fiberglass is worth it.
Hmmm, was the pool painted before? Why would yo want to paint a fiberglass pool? Are the fiberglass showing or coming off? Do a complete job by having a new fiberglass finish reapplied if the glass has deteriorated. Paint- yuk.
Absolutely, But if you only have the land to fit a fiberglass pool, Your new gunite pool will be considerably smaller by about 1 foot all the way around. A fiberglass drop in pool is too small already, RIGHT? Kenny Kummer Brody Chemical
Hum, not sure if you can actually plaster a fiberglass pool. The glass would have to be removed first. You will have to consult a pool builder, a company that installs fiberglass shells or a company that installs fiberglass in plastered pools - thus converting a gunite/plaster pool into a gunite/fiberglass pool. The later uses the old pool shell as the sub-grade or foundation so to speak. k