Case study 1
Pool info: Standard 10m x 5m, two skimmers, three jets
Problem: The pool lost around 4cm per day.
Handy information: The client noticed that the pool lost more water when the pump was off
Observations: We proceeded with pressure testing on all the pipework. No leaks were found on the skimmer pipes or cleaning suction pipe. However a pressure drop was noted on the return jet pipes.
The next step was to determine if the leak on the jet pipes are in the wall fittings or in the pipe itself.
Inflatable plugs were inserted up to 25cm into the wall fittings. The result was no pressure drop. This indicated that the leak is in the first 25cm in one of three jet fittings
After stepped pressure testing the leak was isolated to one jet. The leak was confirmed with colorant testing.
Further colorant testing on all the wall fitting (lights, skimmer mouths and jet fittings revealed no leaks.
Case study 2
Pool info: 15m x 7m infinity system, no skimmers , 2 bottom drains, 6 return jets
Problem: The pool lost around 20 cm per day.
Observations: We proceed with pressure testing on all the pipework. No leaks were found on the pipes tested including all the return pipes as well as the two bottom drains pipes.
Proceeding with colorant testing, a leak was found all along the edge where the steps meets the wall.
But the size of leak did not correspond with the loss of water.
Further underwater colorant testing with SCUBA gear revealed a leak all along the entire edge where the pool floor meets the pool wall
Case study 3
Pool info: Fibreglass on concrete, 10m x 8m, 2 skimmers , 1 bottom drain, 3 return jets
Problem: The pool lost around 3 cm per day.
Observations: We proceed with pressure testing on all the pipework. No leaks were found on the pipes tested.
Proceeding with dye penetrant testing, two leaks were found
One leak on the crack above the light.
And a bigger leak on a skimmer where the skimmer pipe is attached to the skimmer housing.