Hydra Fluorescent Red Drain Tracing Dye
 Size: 100gSize: 2x100g 

Hydra Fluorescent Red Drain Tracing Dye

Our Price:  £16.45(Inc. 20% VAT)(£13.71 Exc. VAT)

Green Tracing Dye
  (1 Review)
  • Soluble In Water
  • Tracing Leaks In drain
  • Non-Harmful & Highly Concentrated

Brand:  HYDRA


Hydra Fluorescent Red Drain Tracing Leak Detection Dye is suitable for detecting the flow of water in all types of pipes, for identifying individual drain runs and for tracing leaks in drains, pipes, toilets & pools. It is a highly concentrated water soluble dye, non-toxic and easy to use.

Note:  Do not use with chlorine or any other product unless specified by Hydra International Ltd.


Use 5g of dye per 100 - 500 litre of cold water. Mix in a bucket then add to the flow of the drain. Each 100g packet will colour 2,000-10,000 litres of chemical free water, dependant on colour.

Average Rating (1 Review):  
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Good for tracing but do not use in pond!
23 August 2022  | 

This is a very effective dye, but be warned that (a) the powder goes everywhere and (b) the dye doesn't fade. I would strongly recommend you wear a dust mask when handling this powder, use it outside and be very careful handling it as even a slight spillage causes red splotches to appear everywhere if/when it gets damp. Also don't use in a pond (as I did) because it doesn't fade (contrary to what this website says) and the pond is permanently dyed red/brown. I completely drained my pond and gave it a thorough clean, but when I refilled the pond it was STILL red brown due to residual dye in the plants and pump - this stuff is very hard to get rid of. Also you probably only need to use 1/4 of the recommended amount to get a good result. There's no Safety Data Sheet available for this product on the website which there should be. This powder probably includes a rhodamine dye, some types of which are considered carcinogenous in some countries (eg Rhodamine B in California), so it would be helpful to have the SDS available - but be cautious and wear a mask just in case when handling it.

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Soluble In Water and Tracing Leaks In Drain