Swimming Pool Construction

Here is the detail of our concrete swimming pool construction steps:

Marking out of the swimming pool area and drilling piling foundations
Excavation for swimming pool
Site overlay to provide concrete screed swimming pool base
Block-work external molding walls of the swimming pool
Double reinforcement steel bar cages set 20 cm apart
PVC Pipe work installation and swimming pool equipment installation including swimming pool lights
Metal shuttering or Plywood molding walls for concrete pour
Pouring concrete floor and walls including high strength water-proof additive and dry concrete rubber joints
Water repellent surface filler sand and cement mix
Tiling mainly Grade A Glazed Ceramic and high quality underwater mold resistant grout
Sand wash finish, decking or tiling detail surrounding the swimming pool
Commissioning - (filling of the pool, turning on the system, chemical treatment and balance of the Ph and chlorine levels, cleaning of the swimming pool)

Circulation

The Purpose of the circulation system (filter system) is to:

Pass all the water through the swimming pool filter and/or salt system

Provide good cleaning by ensuring the salt system and other chemicals are evenly distributed throughout the swimming pool

Eliminate dead spots in the swimming pool where bacteria, debris and other matter may collect.

There are several factors that affect circulation:

Hydraulic efficiency of the swimming pool pump, the pipe work and the equipment.

How often and what length of time the swimming pool pump runs for.

Position of returns to pool inlets

The shape of the swimming pool.

Prevailing wind conditions and other relevant environmental factors.

Common dead spots in swimming pools include:

corners of swimming pool

water features and spa's

external steps

behind ladders and light fittings

the deep end or bottom of some swimming pools.

The Problem with a number of pool designs is that circulation is over looked in favor of looks. In some swimming pools, there are dead spots. Dead Spots are areas where water is not flowing or trapped due to poor swimming pool design and or ladders and step placement or improperly positioned pool returns. Water that is trapped is neither being filtered or properly replenished with chemicals and may bring on rapid algae growth which is seen by green areas on the tiles and grout lines.