Description
Drain testing dye 200g helps trace water flow through drains, pipework and underground drainage systems. It can help identify pipe routes, check outlet connections and highlight possible drainage faults during inspection or repair work.
This Primaflow drain testing dye comes as a variable product in Green, Red and Violet. Each colour helps separate different pipe runs, outlets or test areas during drainage checks.
Builders, groundworkers, plumbers and drainage installers can use this dye on domestic drainage, site drainage, extensions, repairs and general maintenance work.
Drain Testing Dye for Underground Drainage
Drain testing dye helps show where water travels inside a drainage system. Add the dye to water, introduce it into the drain run, and then check the expected outlet, chamber or inspection point for colour movement.
The 200g tub size suits trade use, site checks and maintenance jobs. Also, the different colour options make it easier to test more than one pipe run on the same job.
- Drain testing dye 200g
- Available in Green, Red and Violet
- Useful for tracing water flow
- Helps check drain routes and outlet connections
- Suitable for underground drainage inspection work
- Useful for fault finding, repairs and site testing
- Primaflow branded product
- Variable WooCommerce product by colour
Drain Dye Colour Options
This drain testing dye comes in three colour options: Green, Red and Violet. Green works well as a general-purpose tracing dye, while Red and Violet help when you need a different colour for another test area.
For example, you can use one colour on a main drain run and another colour on a separate branch. As a result, the flow route becomes easier to identify during checks.
Use a suitable amount of dye for the test area. Then flush it through with water and watch for the colour at the correct outlet or chamber.
Drain Testing Dye for Flow Tracing
Drain testing dye can support drainage inspections, repairs and commissioning work. It helps when checking flow direction, investigating unknown pipe routes or confirming where a drain discharges.
For best results, mix the dye with clean water before use. Next, introduce the coloured water into the drainage system and check the relevant chamber, outlet or drain point.
If the colour does not appear where expected, the drain run may need further investigation. In that case, check for blockages, incorrect connections or damaged pipework.
Drain Testing Dye for Site Work
This dye suits site teams working on underground drainage systems. It can help with checks before backfilling, after repair work or during fault finding.
Drain testing dye also works well alongside drain plugs, pipe stoppers, inspection chambers and other drain testing equipment. Therefore, it is a useful product to keep with general drainage testing supplies.
Compatible Drain Testing Products
This drain testing dye is part of the wider TWS drain testing range. You can use it alongside suitable drain test plugs, pipe stoppers and underground drainage inspection products.
View drain testing products at TWS.
Shop all underground drainage at TWS.
View manhole bases and inspection chambers at TWS.
For supplier product information, see the Primaflow F&P test dye product listing.







