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Answered 2015-07-16 18:09:34

The experts at Advanced Pool Coatings have been installing fiberglass coatings over vinyl liner pools for over 30 years. You can read more at:

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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.

The Pantheon was made of stone, concrete, and over five different concrete mixtures. The dome had a heavier concrete mixture on the bottom, getting lighter as it got higher.

No!!! Under no circumstances should you drain a fiberglass in-ground pool. Unlike the standard in-ground pool, the fiberglass pool base is unreinforced concrete or other hard surface material that was applied directly to the soil in a thin layer. It is only there to allow the fiberglass to be sprayed on and form a hard shell. The weight of the water is what holds the fiberglass in place. If you drain the pool without refilling it immediately, you will allow external ground pressures and/or ground water to buckle the sides or bottom and you will have the fiberglass completely redone.

Attach your bottom plate 1st then attach studs to the bottom plate. The bottom plate can be fastened by using concrete nails or concrete anchor bolts.

Steel walls are currently the lowest quality wall for a swimming pool, with the exception of Cyprus wood (if still available). Concrete (not gunite) is superior to any other wall, but a pool with concrete walls generally also has a concrete bottom. In other words, it is a concrete swimming pool. The most popular wall today for vinyl liner pools is fiberglass and, with the possible exception of concrete, is the best possible choice.

Under no condition do fiberglass pools have "ripples" on the bottom after they are installed. Of course, the pool could have been damaged in some way, then improperly repaired, before or after it was installed.

There are two parts to all vinyl liner pools, i.e. the walls, the bottom. The walls are nearly always the first 3 1/2' down from the top, and the bottom is the rest of the pool. In other words, everything below the wall, even the vertical part below the wall, is called the "bottom" along with the flat horizontal section. The walls cannot be dirt. They can be galvanized steel, fiberglass, concrete, or even wood (cypress). The bottom can be dirt, but a mixture of cement/vermiculite is highly recommended. This will help maintain the dimensions of the pool and will not wash away, or erode, as time passes. A dirt bottom can work in an extremely dry climate which sees no rain or snow on a year round basis. But even then, rodents can cause serious problems when the bottom is dirt. I recommend fiberglass walls with a cement/vermiculite bottom. -Good luck.

IN Slump Test we have to provide a uniform base and it requires 4 times for compacting the concrete to fill the cone while without disturbing the bottom layer of concrete. but in other it is requred only to compact well to concrete with disturbed to bottom layer.which is good regarding the strength of concrete.

I purchased one several years ago, now it has blisters through out the pool, a crack in the bottom that leaks, and one side bulges in.Sun fiberglass pools are not considered to be among the best. Regarding the previous answer: I do not believe the crack in the bottom, and the bulging side is the fault of Sun fiberglass pools. This is almost always caused by insufficient water inside the pool to equalize the pressure caused by ground water. However, there is no excuse for blisters to appear in a fiberglass pool that is only several years old.

To convert a fraction to a decimal, divide the top number by the bottom number.

yes it is, if that is the bottom floor

It is heterogeneous since some of the powder settled to the bottom. If all the powder had mixed in, it would be homogeneous.

divide the top number to bottom.

You pour the sand and Styrofoam mixture into the a glass of water. Then the sand will sink to the bottom and the Styrofoam will float that is how you separate a sand and Styrofoam mixture

In a nonhomogeneous mixture this is the denser liquid.

you were them all the time or you scrape them on concrete.

England. In a flat (apartment), that is not the bottom floor, in a concrete building.

the concrete should be 6" according to this site

when concrete is vibrated while pouring in to the form work, the cement slurry part tends to get drained through voids between aggregates and the richest part of cement slurry is detained at bottom portion of column. this causes a strong, dense, and void free concrete which ensures better compressive strength than the concrete on top portion of column.

Steel re-inforcing in concrete should always be placed 1/3 of the depth from the bottom. A 6" thick slab would have the steel placed 2" off the bottom.

You can't, I have never heard of any one converting any type of pool. The pool has to be taken out and then you can rebuild a new pool or fill in and put new pool in a new spot cost wise it is not feasable.

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