-- First, no manufacturer of fiberglass pools guarantees against cracks. Period.
-- Second, all pools can have problems when the water is emptied; when leaks are not repaired in a timely fashion; or when the water is lower than the surrounding groundwater.
Fiberglass pools are great: They can be installed with fewer subcontractors and in less time than a gunite pool. And they also have a smooth surface. Gunite pools have many choices and are not limited in size, shape or depth. They also have many smooth surface options and color choices and warranties vary.
Last and most important: YES, it takes a professional to install any in-ground swimming pool. If you don't hire one, you most likely will not get a good pool -- no matter what the shell is constructed of. It takes many years to learn to be a pool professional; this is not a craft that happens overnight.
Hire a professional, licensed, insured pool pro to get the pool you expect and to save money in the long run. Read your warranty: The fiberglass manufacturers have great warranties, as do the gunite manufacturers and even the Vinyl Liner in-ground pools alike.
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I am a fiberglass swimming pool installer. 12 years and counting with A++ knowledge and record. FYI- I have scene floating gunite pools and floating vinyl liners. If a pool develops a leak or the ground shifts or flooding occurs, it does not matter what type of pool you have, if there is more water on the outside of the pool shell than on the inside, something has to give. The liner pools develope floating liners even being full if there is a ground water issue and no precautions are taken during the install. Such as sump systems for the ground water.
Fiberglass Is 17 times denser that concrete giving it strength and more flexibility. I have seen them move up to as much as 5'' and hold their integrity.
Now. If the proper installation is applied to the life time warrenty shell, it to can be a lifetime backyard enjoyment for the family. The installation preperation and consideration of all elements and ground conditions to the area makes each and every pool install differant. Never one the same. So look at all of the variables involved with your backyard and keep in mind, If I you willing to spend your hard earned money on something that needs to last at least 20 plus years, what can be done during the install to help the projects longevity and your future sanity?="margin-right:0px">
Illinois is in the western and northern one.
Northern Star - Northern Illinois University - was created in 1899.
Northern Illinois University was created in 1895.
In northern Illinois, Famous Footwear
Northern Illinois Huskies football was created in 1899.
Northern Illinois District - LCMS - was created in 1907.
Northern Illinois Bluegrass Association was created in 1996.
The address of the Northern Illinois University Foundation is: , Dekalb, IL 60115-3072
Centegra Northern Illinois Medical Center was created in 1987.
Northern Illinois University shooting happened on 2008-02-14.
Northern Illinois University College of Law was created in 1975.
The web address of the Northern Illinois University Art Museum is: www.niu.edu/artmuseum/