Leak detection dye tablets help reveal a silent toilet leak: place dye in the tank and check whether color appears in the bowl. The New Resources Group 20-packet set is suited to occasional household checks, while Demissle’s 30-tablet jar offers a compact supply for repeated testing. For larger workloads, consider the 100- or 200-tablet options from New Resources Group or Demissle. The right choice mainly depends on how many toilets you need to test and how often.
| Product | Best For | Pack Size |
|---|---|---|
| New Resources Group 20 Pack | Occasional household tests | 20 packets; 40 tests stated |
| Demissle 30 Pcs | Regular home testing | 30 tablets with jar |
| Blue Streak Pro 200 | Plumbers and large properties | 200 tablets |
| Demissle 200 Pcs | Frequent testing with storage | 200 tablets with jar |
| New Resources Group 100 | Multi-toilet testing | 100 tablets |
New Resources Group 20-Pack Tablets
This New Resources Group set contains 20 packets, with two blue tablets per packet. The product listing says the supply is good for 40 tests. To check a toilet, place a tablet in the tank and look for dye in the bowl; the color can indicate a silent leak that may otherwise go unnoticed.
Best for: Homeowners who want a defined supply for occasional checks. Its packet format separates the tablets into individual portions, and the 40-test claim makes the stated quantity easy to compare with smaller sets.
Consider: This is not the largest option for property managers or plumbers testing many toilets. The listing does not provide the five-minute test timing included with some other products, so follow the product instructions.
Demissle 30-Tablet Jar
Demissle includes 30 individually sealed blue dye tablets and a storage jar. The listed method is straightforward: put a tablet in the tank, stir gently, and wait five minutes. Blue dye in the bowl indicates a leak under the product’s test instructions; no dye appearing indicates no leak was detected by this test.
Best for: Households that want to repeat checks over time without buying a bulk pack. The jar provides a place to keep the supply, while individually sealed tablets are intended to simplify storage.
Consider: Thirty tablets provide less volume than either 200-tablet option. A dye test is a visual check, so the user still needs to inspect the bowl after waiting.
New Resources Group Blue Streak Pro 200
Blue Streak Pro is a 200-tablet bulk pack in an EZ Pour container. The listing describes the tablets as professional grade and identifies plumbers and people responsible for large numbers of toilets as likely users. It is designed for detecting silent leaks in bathroom toilets.
Best for: Plumbers, maintenance staff, and property operators who need a larger supply for multiple fixtures. The 200-tablet quantity is substantially larger than the household-size choices in this guide.
Consider: A bulk container may be more supply than an occasional user needs. The provided product details do not specify a wait time or a step-by-step testing procedure, so check the package directions before use.
Demissle 200-Tablet Jar
This Demissle option provides 200 blue tablets and a storage jar. Its listed instructions are to place a tablet in the toilet tank, stir gently, and wait five minutes. If blue dye appears in the bowl, the product says a leak is present; if it does not, the test did not show a leak.
Best for: Users who want a bulk supply but also value the included jar for storage. The product is intended for regular testing to help identify leaks early.
Consider: The 200-tablet quantity is likely excessive for a single toilet checked only occasionally. Its five-minute wait is part of the stated method, so allow time to complete the test before checking the bowl.
New Resources Group 100 Tablets
This New Resources Group product is a 100-tablet professional-grade blue dye option, sold as two packs. Its listing describes it as a tool for detecting silent bathroom toilet leaks and says it is suited to plumbers or anyone responsible for many toilets.
Best for: Buyers who need more than a small household supply but do not require the 200-tablet quantity. It offers a middle-ground count for repeated checks across multiple toilets.
Consider: The supplied details do not explain the container or include a specific wait time. Buyers should check the package instructions and storage details rather than assume they match other products.
Buying Guide: How To Choose Leak Detection Dye Tablets
How many toilets will you test?
For occasional checks in a home, a smaller pack such as the 20-packet or 30-tablet option may be sufficient. People testing several toilets or repeating tests regularly may prefer 100 or 200 tablets. Compare the stated tablet count and any stated test count; the 20-packet product specifically says it provides 40 tests.
Do you want a jar or individual packets?
Storage format can matter if you will keep the tablets between tests. The two Demissle products list a storage jar, and the 30-tablet version also describes individually sealed tablets. The 20-pack New Resources Group product is divided into packets. Check each package’s directions for handling and storage guidance.
How do you read the test?
Follow the instructions supplied with the product. For the Demissle tablets, the listed procedure is to add a tablet to the tank, stir gently, wait five minutes, and check for blue dye in the bowl. Dye in the bowl signals a leak according to those instructions. A test that shows no dye does not replace inspection or repair when other signs of a leak are present.
When is a bulk pack the better choice?
Bulk packs are intended for repeated testing or responsibility for many toilets. Blue Streak Pro and both 200-tablet options offer larger quantities; the New Resources Group 100-tablet product sits between those and smaller home packs. For a single household that tests infrequently, the smaller counts may be easier to use up.
Frequently Asked Questions
What do leak detection dye tablets check?
They help identify silent toilet leaks by coloring the tank water and checking whether dye appears in the bowl.
What does blue dye in the bowl mean?
For the Demissle instructions, blue dye in the bowl after testing indicates a leak from the tank into the bowl.
How long should I wait before checking?
The Demissle product directions specify a five-minute wait. Follow the instructions included with whichever tablets you choose.
Which option is best for a plumber?
The 200-tablet Blue Streak Pro is specifically described as suitable for plumbers and people responsible for many toilets. The 100-tablet and Demissle 200-tablet options are also larger-supply choices.
Can one test confirm every plumbing leak?
No. These tablets are described for detecting silent toilet leaks. They do not establish whether other plumbing fixtures or pipes are leaking.