Leak Finder Dye Tester Pre-filled Swimming Pool Spa

 

These convenient syringe-style testers are charged with a special concentrated dye that holds together underwater. Six-inch plastic "needle" allows for precise dye placement without creating unwanted currents.
Features:

Identify the precise location of structural pool leaks
fluorescent yellow (for dark backgrounds)

Dye testing provides a means of identifying if visually identified leak locations are actually losing water. A small amount of dye is squirted within 5 or 6 mm of a suspected leak to see if that dye is pulled out of the pool with the escaping water.

The pool should be filled to its normal operating level and the circulatory system turned off before dye testing. It is also helpful to assure that the pool has been cleaned prior to testing, as some leaks will be plugged up by dirt or debris and therefore will not draw dye.

A dye tester is simply a syringe that holds a concentrated dye and has several advantages over simple test reagent bottles that are commonly used for this procedure.
First, it uses a long nozzle that allows precise application of the dye without creating unwanted water currents.

Second, the syringe allows the dye to stay concentrated even when used while diving (squeeze bottles suck in water when released, diluting the dye).