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Pool Installation

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Many of our customers wonder what will actually happen when Sunco arrives to install a premium San Juan fiberglass pool. Sunco Pools will perform the following tasks as quickly and professionally as possible.

Select Pool Site

Selection of the pool site will determine how much grading will have to be accomplished prior to the actual dig for the pool. Naturally, a level area is best because it will require the least amount of preparation for the dig, but in many cases there is no level area, therefore, the site must be prepared to accept the pool prior to dig. The pool site should be elevated slightly higher than the surrounding area. It is most important that drainage from the surrounding area does not run into the pool.

Sunco will contact your utility companies to determine where any underground power or cable lines, gas pipes, etc. will need to be relocated (if any).

Prepare for Excavation

With the area for the pool properly graded to accept the pool, we are now ready for the excavation. Your San Juan pool distributor has a "dig diagram" furnished by San Juan for the particular pool you are installing. Sunco will start by setting up grade stakes and string or 2x4s outlining the area for their excavation.

NOTE: The finished elevation, the top of concrete decking, should be 4" to 6" above the surrounding area for proper drainage away from the pool.

Perform the Excavation

With the pool area and all elevations planned including your decided type of decking, Sunco is now ready to proceed with the dig.

An ideal excavation is one that is as close as possible to the dimensions of the pool shell, but with the following rules in mind. The excavation should be 2" to 4" deeper than the actual pool for your sand bed. The sand bed is to level the pool shell and provide a perfect support base with no voids when the pool is lowered into the hole.

Prepare Hole for Pool Shell

Sand, or rock dust must be used to bed the shell into the excavation and for backfill. Sunco will determine how much sand is needed to be placed on the bottom of the excavation of all constant depth pools or those with constant slopes, by setting a grade stake at all four corners, and one on each side of the centerline in the bottom of the hole. If we are installing our deeper pool models with breaks for deep ends, than each individual depth change must be noted by stakes outlining each area.

Sunco will use a level 2x4 as long as the width of the pool as a screeting device to level the sand to the top of the string. The objective is to compact the sand into a smooth level bed to the depth of the string outline of the pool bottom. When finished, Sunco will have a perfect bottom for the pool shell to rest on.

Prepare Pool for Placement

Your San Juan pool is delivered to the site with most of the fittings in place. Sunco may have to mount supplemental items not ordered with your pool, such as additional inlets or jets. They will install these items while the pool is out of the ground. Most of the pools plumbing should wait until the pool is in the ground, except for the main drain line. This line will be stubbed up and tied to the pool prior to setting the pool in the hole.

Set Pool in Place

With the hole properly prepared, all measurements double checked, and making certain that there is nothing in the bottom of the hole except a compacted level bed of sand, and your sump installed, Sunco is now ready to set the pool.

A suitable sized crane will be utilized for this job. Rope lines will now be attached to the pool by the installer to help guide it when lifted by the crane. Sunco will now carefully and slowly lift your pool slightly off the ground or trailer and double check all chains and straps. They will insure everything is properly rigged before proceeding. It is not advisable to lift the pool during any type of wind. The pool will act as a giant kite. Sunco will make certain wind is at a minimum.

Level Pool in Hole

With the shell setting in the hole and the main drain and attached pipe double
checked to insure it is not damaged, it is time for Sunco installer to check your level. Standing and jumping on all four corners will help settle the pool in place to insure it is not hung up. When they are certain the pool is all the way in the hole, measurements should now be taken with a transit. They will set their story pole on the top of the coping at each corner, staying away from seating areas and steps, and take your measurement at each corner. All four comer will be within one half ( l /2") of an inch. Particular attention must be made on all 8" or deeper models to insure the break points are setting where they were planned without voids or binds.

When everything is properly measured your pool will be level. It is not uncommon for your Sunco installer to have to lift and set the shell several times prior to getting the pool exactly level. Sunco will take whatever time is necessary to insure the pool is within the one half (1/2") tolerance.

Note: Sunco will not leave the pool at this point if rain is in the forecast. Heavy rain now would float the pool, ruin the bottom and destroy all your work. Weather planning is extremely important when starting your excavation.

Fill and Backfill the Hole and Pool

The important thing to remember is that Fiberglass Pools are flexible, and equal amounts of pressure on each side of the pools walls must be maintained at all times.

Sunco will start by filling the pool with one foot ( 1' ) of water. This will securely anchor the pool into the excavation. They will then recheck their measurements with a transit. This is because these areas may sag and will require additional reinforcement. With reinforcement in place and one foot of water in the pool, we may now proceed with the backfill.

Sunco will now start adding sand or rock dust around the pool. The amounts of sand or rock dust required for each pool is different, and the amount will also be effected by how close your hole is to the dig specs. In general, a 12' wide pool will take 20-30 tons, 14' wide 30-40 tons and 16' 40 tons+.

The water in the pool will be added at a rate equal to the rate of backfill, with the water maintaining a level one foot higher than the sand backfill throughout the entire fill and backfill procedure It is very important to keep equal amounts of pressure on the pools walls. The time this procedure takes is determined by the jobs water pressure. Remember, Sunco cannot fill the pool any faster than we can backfill it.


Install Pool Plumbing

All plumbing should be 1 1/2" PVC schedule 40 pipe or 2" if the pump and filter is over 30' feet from the equipment. The lines around the pool should not go in until the sand backfill is up high enough to allow setting these lines, at the height of the returns and skimmer, on top of the backfill. This will prevent the lines from sagging, and possible cracking. After they are run, the balance of the backfill can continue over these lines. Sunco will have separate lines from the pool to the equipment for the skimmer, main drain and pool returns. They may have additional lines if you are planning a pressure side pool cleaner, spa jets or fountain/waterfall.

NOTE: All plumbing will be pressure tested by Sunco prior to pouring your concrete decking.

Install Pool Deck

Sunco will ensure that all electrical hook ups are completed before pouring the concrete. They will make certain all electrical inspections on lights, bonding and all other electrical work have been completed and checked off by the local inspectors prior to proceeding with your concrete. They will probably encourage you to run the pool for at least 24 hours before they pour the concrete to insure there are no leaks.

Sunco will dig out an area around the pool exposing the flange of the coping and just under it. This is important as concrete should be packed under and over the flange of the pool, as the deck is poured. This will lock the pool into the concrete and provide for a much stronger bond of the pool to the deck. It will also eliminate cracking of the deck where it meets the pool.

Sunco sets your outside forms, remember they want any water from rain or splash out to run off the deck, not into the pool. Plan for a slope of 1/4" per foot away from the pool. An experienced concrete finisher is always used when pouring pool decks, especially when you are doing a cantilevered deck. Fiberglass pools are different from Vinyl or Concrete in that the pools are full when the concrete is poured.

Congratulations !!!! Sunco has successfully installed your San Juan fiberglass Pool.


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