Green Tracing Dye - Highly Visible Concentrated Fluorescent Leak Detection Dye - 1 Gallon

great for verification of under ground utilities

This product proved conclusively that during a heavy rain water flowing under my land from a road catch basin had long ago found a way out of an apparently broken drain pipe and caused a large cave-in on my driveway. Hole is 40 inches wide and 40 inches deep, and also extends an unknown distance under the asphalt that is still intact. My town cannot dispute the results and will remedy the situation and repair my driveway. The photo shows the green dye just arriving in the big hole several minutes after I poured some into the catch basin on the road during a heavy rain.

So easy to use … no mess and brute color

Used to trace were drainage was leaking from. Did a good job. Easy to follow. Last for days . Maybe have used to much but worked well.

Still havent found the drains. It does stain heavily so be careful not to spill or get it on your hands. Takes a long time to wear off! May work better for othera needs not so much for ours. We wanted to know wherw are down spouts and floor drains led and.atill no.clue.

Worked great! I needed to trace where the water bubbling up in my lawn was coming from. Unlike other septic dyes, this was very visible and unmistakeable.

We actually bought this tracing dye to turn our pond green for St. Patrick’s Day. It worked perfectly, the color lasted a few days and it was great for the occasion.

Easy to see in daylight. Used it to confirm patency of positive crawl space drain.

It’s not really any cheaper to buy this stuff. It’s priced about the same. I have eye dropper bottles. It goes in those. I use it for dye tests (you only need a couple drops!) and for showing customers leaks in their toilets, showers, etc. It is super visible. It’s a good product and basically a lifetime supply of this stuff unless you have crews. Then they’ll use a bottle of this a week because they’ll waste it and spill it. Lol. In this case you need to order it once a week. Haha

Fantastic non-toxic product!! I put in small containers with eyedroppers and put in a plumbing service truck for dye testing toilets and other plumbing service issues. Three or four drops of this in a toilet will get the job done better than 1/3 of a bottle of food coloring. So glad I found this non-toxic product, make me less nervous about kids or pets while Im working in someones home.