Anchoring

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The Wave Ball is anchored with an elastic in order to stay in its working area while having enough freedom for the vertical motion (pic 1). One end of the elastic is attached to the bottom of the Wave Ball and the other end to an anchor point. That anchor point can be on the floor, on the sides or on the ceiling of the tank following the pool configuration and the client’s needs.

The elastic

This elastic rope (pic 2) has been designed in order to resist to the continuous movement of the Wave Ball; it is made of one main rope and one safety rope which is several cm longer so it will break after the main rope.  If one of the two ropes is broken, the elastic rope must be replaced.

 

Tips are equipped with stainless steel fast link shackles for easy replacement (tear and wear parts).

 

In order to increase swimmers safety, rubber parts are placed inside shackles and rings opening so it is impossible for swimmers to pinch their fingers.

 

Pic 1: elastic rope in a single point anchoring
Pic 1: elastic rope in a single point anchoring
Pic 2: Elastic rope
Pic 2: Elastic rope

Anchors types

The anchors can be specially designed ones and provided by WOW Company or regular chemical ones. All those anchors are or have to be dimensioned in order to be able to resist to a load of 200kg in a cone of 45°.

WOW anchors

The WOW Company’s anchor (pics 3 and 4) is a stainless steel tube which contains a retractable ring. When the anchor is not in use, the ring is automatically retracted in order to let a flat floor which is easier for the robot washers for example.

WOW Company ’s anchors have been developed for each kind of pool surface: tiles/concrete, liner and stainless steel.

For safety reasons, a finger protection part is delivered with the anchor assembly.

 
Pic 3 : WOW anchor for tiles with finger protections
Pic 4 : WOW anchor for tiles with finger protections
 
 
Pics 3 & 4 : WOW Company anchors for tiles with finger protections
 

Chemical anchors

Chemical anchors (pics 5 and 6) are generally used when the ropes of a three point anchor system have to be fixed on the wall or when a side anchoring is necessary. Those anchors are generally M16 sized.

 

  Pic 5 : Chemical anchors 

Pic 6 : Chemical anchors

 
 
Pics 5 & 6 : Chemical anchors
 

 

Some Rescue & Survival tanks are already equipped with several anchors evenly distributed on the floor.

In that case, WOW Company tries to use those ones.

Anchoring solutions

Bottom anchoring

The elastic rope is attached to the ground thanks to an anchor integrated in the bottom of the pool. This anchoring method is the best one considering that the elastic rope is shorter and that all the anchoring system is hidden underneath the water level. Depending of the depth, the bottom anchoring can be single or three points.

 

 

Single point vs Three points anchoring

The single point anchoring is used for depth up to +/- 2m (depending on how far are other accessories and walls). Beyond that, the length of the elastic will allow the Wave Ball to move too much on its sides. This is why from that depth, the anchor has to be triangulated in order to make a virtual anchor point at a smaller depth.

 

This three point anchoring system is the most common anchor solution used in Rescue and Survival tanks as the depth generally turns around 4-6m. The triangulation is made by three ropes attached to three anchors fixed to the bottom or to the wall of the pool.

Pic 7: variant version of a three point anchoring
Pic 7: variant version of a three point anchoring
 
Pic 8: three points anchor and translation system
Pic 8: three points anchor and translation system
Pic 9: cleat on the beach
Pic 9: cleat on the beach
 

 

 

Translation systems

 

Sometimes, the pool has to be free from the Wave Ball for activities that do not require waves. In that case, the Wave Ball can be moved manually from its working position to the border and return thanks to a translation system; all that operation can be done from the beach without having set a foot in the water. When the Wave Ball is in its border position, it can either stay there or be taken by a crane to a stocking place outside of the tank. This translation system can be done either for ceiling anchoring or bottom anchoring.

In a translation system, the elastic rope is extended with a rope at its end and slides in a pulley that is attached to the anchor (pic 8). If this rope is free, you can move the Wave Ball to the border by pulling it by its cable. If you pull on that rope, the Wave Ball will come back to its working position. The rope is then fastened to the border of the pool thanks to a cleat (pic 9). This system can also be bi-directional which means that the whole operation can be done only by pulling on the rope (no need to pull on the cable to move the Wave Ball close to the border).

 

Ceiling anchoring

 

If the ceiling is not too far from the water surface, the Wave Ball can be anchored by the ceiling of the tanks (pic 10). This can be combined with a cable of the Wave Ball coming from above (see electrical configuration chapter).

Pic 10: ceiling anchoring
Pic 10: ceiling anchoring

Side anchoring

This solution mostly serves to keep the Wave Ball in a reduced working area when the bottom anchor is not sufficient for that.

This mostly happens when  the Wave Ball is placed close to the corners, the walls, other accessories or in cases of very narrow pool. The side anchoring is nearly always combined with bottom or ceiling anchoring (pic 11).

Anchoring drawing

 

When the place for the wave Wave Ball and type of anchor are chosen, WOW Company will deliver a drawing for the anchoring (fig 1).

Pic 11: Side anchoring in combination with ceiling and bottom anchoring
Pic 11: Side anchoring in combination with ceiling
and bottom anchoring
 
Fig 1: three points anchoring drawing
Fig 1: three points anchoring drawing