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In-Ground Trampolines IGT Site Preparation 15’ Manual

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Step 1: IGT Site Preparation 15'
Site Location
Several factors must be considered when choosing the site for your new In-Ground Trampoline (IGT) system. Since
local soil and weather conditions vary greatly from region to region, it is recommended that a local landscape expert be
consulted for placement of the system.
A minimum of 12 feet of overhead clearance and 5 feet of clearance from the trampoline to other objects on the ground
is recommended for the jumpers protection.
Using impact-absorbing ground cover such as grass, sand or bark chips is recommended for 4-6 feet around the
trampoline.
Drainage
Drainage is not a problem with our In-Ground Trampoline system.
It is recommended to leave 2-4 inches of the trampoline above the final grade and gradually berming the soil up to the edge
of the trampoline. This will keep water from flowing into the pit in the event of heavy rain. Depending on local soil
conditions you may consider adding 4 to 6 inches of rock into the bottom of the pit, creating a sump effect to prevent
standing water. You will need to excavate the center of the pit deeper at the same depth as the rock you intend to add.
Extreme conditions may require additional drainage methods or the use of a sump pump. It is always a good idea to consult a
local landscaper regarding local soil conditions and drainage for your area.
The Pit
The IGT system is designed to be installed partially or completely recessed in the ground.
Either way, the pit will need to be excavated to a diameter of at least 16 feet 4 inches. If the IGT system must be assembled
in the pit due to size constraints of the yard, a 17 foot pit is recommended for easier access to assembly hardware.
For a completely recessed system we recommend the excavation of the pit depth be 16-18 inches deep around the edges and
30 inches in the center. See below for Pit Dimensions. The system is a total of 20 inches tall so this allows for the
trampoline to remain at least 2-4 inches above the grade as recommended in the Drainage section.
For a partially recessed system, the dirt excavated from the pit can be used to build up the area around the installation.
Excavating the pit to a depth of 8 inches leaves 12 inches of the system exposed. This method eliminates the need for
removing excavated soil from the property.

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Summary of Contents for In-Ground Trampolines IGT Site Preparation 15’

  • Page 1 Step 1: IGT Site Preparation 15’ Site Location Several factors must be considered when choosing the site for your new In-Ground Trampoline (IGT) system. Since local soil and weather conditions vary greatly from region to region, it is recommended that a local landscape expert be consulted for placement of the system.
  • Page 2 Very Important Instruction Tips For Proper Installation -The IGT system must be set above the grade of the yard to prevent water from collecting in the trampoline pit. -The IGT frame must be completely level and round before and during the backfilling process. -Soil compaction must be done evenly during backfill process.
  • Page 3 Details on Trampoline Installation Depth The IGT system is a total of 20 inches tall. Excavation to a depth of 16-18 inches will leave the frame 2-4 inches above the yard grade. This will keep water out of the IGT system. In order to have the trampoline appear to be flush in the yard, simply use excavated soil to create a berm up to the edge of the frame.
  • Page 5 Step 2: Lay Out Parts Parts list Quantity 15 Foot __________________________Description_________ Top Frame Segments (with spring holes) Bottom Frame Segments (without spring hole) Wall Panels Rubber Edge Protector Strips Pad Set Jumping Surface Springs Bolts Nuts Washers Protective Plastic Bolt Caps Tool Kit...

  • Page 6: Step 3: Frame Assembly

    Lay Out Parts for Easy Installation Lay out parts as shown to simplify assembly of the frame. Use one of the shipping boxes to separate all the hardware. Step 3: Frame Assembly Tips Our parts are machine stamped and drilled and therefor can have burrs. We work hard to make sure all parts are smooth but there is a chance there could be a sharp edge.
  • Page 7 Step A: Assemble lower frame ring section. Assemble lower ring (frame tubes without spring holes) using the 15 lower frame tube segments. Step B: install rubber protective strips Locate the 15 black rubber protective strips and apply them to the top edge of each wall panel.
  • Page 8 Step B: Join the wall panels to the lower frame. We recommend the assistance of a helper for this stage of the assembly, one person to hold the panels and another to install the hardware. Use the supplied “T” handled hex key to help push the bolts through the wall and frame. Using the center hole, attach one of the wall panels to the lower ring using a bolt with a washer on the wall side and a washer and locking nut on the tube side.
  • Page 10 Step D: Complete the frame assembly. The final wall panel and upper segment installation may require lifting and/or shifting the frame. This is why the bolts should be left loose until the frame is completed. Be sure all edge protectors are properly seated then tighten the hardware.
  • Page 11 Step 4: Position Frame Assembly into Pit Install The frame can now be placed into the excavated hole. The completed frame weighs 335 lbs. (15’) and will require 3 to 4 adults to position the frame into the pit. Do not force the frame into a pit that is not excavated to spec. This could cause the frame to take on an oblong shape.

  • Page 12: Very Important

    Very Important! A level and round frame is important for best performance and safe trampoline use. The best way to level the frame is with a laser level or transit. A string level can be used as well. We recommend you using at least 4 strings to get the frame as level as possible.
  • Page 13 Step 5: Install Jumping Surface Attach Every 4 Spring Start at any point attaching every 8 spring from the frame to the rings on the jump mat, skipping 7 holes on the frame and 7 D-rings on the mat. Hook the spring onto the jump mat D-ring first and then into the hole on the frame. You can use another spring as a spring tool to help stretch the springs into place.
  • Page 15 Next, attach every 4 spring.
  • Page 16 Next, attach every 2 spring.
  • Page 17 Make sure the springs already attached are correct. There will be a frame hole and mat ring for each spring. After the pattern is confirmed correct, attach the rest of the springs to the frame and mat.
  • Page 18 Step 6: Attach pad Edge protector Before installing pads, make sure the Edge Protector is properly in place Install pad It is important to make sure the pad is properly attached so that the springs and frame components are always covered. Correct bungee placement is critical to make sure the pad is centered properly on the frame.
  • Page 19 Start with the pad folded on top of the IGT frame. Locate the small fabric strap loop on the bottom seam of the pad. Slide one of the bungees through the loop from the inside to the outside. Push the bungee between the wall panel and the frame tube and wrap it around the frame tube and over the ball on the end of the bungee securing it in place.
  • Page 20 Install IGT Silencers Your IGT system comes with a set of foam cylinders install on the springs that are designed to prop up the pad slightly increasing airflow and decreasing the noise from the pad as you bounce. Once the first pad bungee has been placed you can now add the Silencers. Remove the 3rd spring away from the bungee, slide that spring through the center hole in the Silencer.
  • Page 21 Place a Silencer on every 5 spring, skipping 4 springs, all the way around. Finish attaching the pad. Unfold the pad one section at a time and secure each strap loop with a bungee in the proper position on the frame.
  • Page 22 You are now finished with the IGT installation! Let   t hem   F ly,   K eep   t hem   S afe!   Falling   o ff   a   t rampoline   i s   o ne   o f   t he   l eading   c auses   o f   i njury   o n   t rampolines.   I nstead   o f   f alling   3   t o   4   f eet   o ff   o f   y our   •...
  • Page 23 IGT Care and Maintenance Thank you for purchasing your IGT system. Your new In-Ground trampoline will provide many years of fun and fitness but your system does need regular cleaning, inspection and occasional maintenance. Failure to provide the care your system needs could affect the warranty. Please read the following recommendations for cleaning and maintenance.