Green Water Tracing & Leak Detection Flourescent Dye - 1 Gallon

Worked well. Dye takes several days to fade away. Our sump pump goes to our pond, so pond was neon green for a few days or a corner of it. Only takes a little bit to use, not entire gallon.

It does as advertised, and detected all of my leaks...

I had an issue in which one of the waste pipes within a house underneath the basement slab was cracked and was leaking into the french drain and ending up in the sump pit. To isolate the source, I added a small amount (4 ozs) of this tracing dye to a 5-gallon bucket of water. This stuff is orange in the bottle, but wildly flourescent yellow-green when mixed with water. It worked fantastically well, and we quickly isolated the source. Following the directions, we had also purchased a UV blacklight to more easily see the colored solution in the sump pit, but in our case, it was so obvious -- and so yellowy-green -- that we didnt really need that UV blacklight. FYI, the seller was very prompt with delivery and we received this without any leaks. For this particular application, I highly recommend it.

Needed to find where gutter was draining and about a cup in the drain followed by running the hose in the drain for 5 minutes created a fluroescent green river by the output on the street. It worked exactly as advertised and yes the liquid is orange in the bottle.

Thank you!

Lights up very well under UV light. Used for a Halloween decoration and it worked great.

I bought this because I needed to find a leak in my in ground pool. I poured half the bottle, and within minutes, the water turned green, but there is no way to tell where the water is going! I ended up having to empty all the pool water, and even during that process, you could not see the water going down the drain, so this was a total waste. Also, the bottle has a couple of labels, one says non toxic, biodegradable but then another says not to let it touch your skin, eyes, etc, make up your mind, is it safe to use or not?

Tracking simple and clear thanks to a well designed product, that dissipates within a decent interval without compromising on its stated purpose. It works!

One of the bottles came WITHOUT a cap. Only the foil seal prevented a huge mess in transport.

I am unsure where my previous review went, however here is an update: When I received the item the color of the dye was orange. The label is as pictured but the color of the dye in the bottle is definitely orange. It will also stain your clothes that color of orange. After pouring the orange liquid into your drains and dissolving/mixing it with water it will turn the brightest green you have ever seen. I used it to test flows for french as well as finding downspout drains. Works excellently! Will buy again. Seller is top notch!