American Water Service Purtest Bacteria Test Kit

The Purtest Bacteria Test is an easy, reliable, and accurate at-home screening kit for detecting Coliform bacteria, nitrate, and nitrite in drinking, pool, or hot tub water. Lab-certified for dependable results, it lets homeowners check for potential microbial contamination on their own schedule, without the delay and expense of sending samples out to an external laboratory for every routine check. For private well owners in particular, having a quick screening option on hand makes regular monitoring far more practical.

Coliform bacteria are a key indicator organism in water testing: their presence in tap water can signal the possible existence of harmful bacteria such as E. coli and suggests unsafe conditions that warrant further investigation. With this Purtest kit, you will experience fast results during your test—a color change from purple indicates that bacteria are present, giving you a clear, unmistakable visual warning that prompts action rather than guesswork. The straightforward color-change readout means no special equipment or training is required to interpret the result.

What it screens for

• Coliform bacteria, an indicator of possible contamination
• Nitrate
• Nitrite
• Suitable for drinking water, pool, or hot tub water
• Lab-certified for reliable, repeatable results
• Simple color-change interpretation, no instruments needed

Regular bacteria testing is especially valuable for private well owners, anyone relying on an untreated source, and households after plumbing repairs, flooding events, or a noticeable change in water taste or odor, since any of these situations can introduce or reveal contamination. If a test signals contamination, it is wise to confirm the result with a certified laboratory and consider appropriate disinfection options such as ultraviolet (UV) treatment or chlorination to address the underlying problem. Keeping a kit on hand also means you can quickly re-test after corrective measures to confirm they worked. Compact, affordable, and simple to use, the Purtest Bacteria Test is a smart first line of defense for keeping an eye on water safety at home. For peace of mind between full laboratory analyses, this lab-certified kit is an affordable, dependable way to stay informed about the bacteria, nitrate, and nitrite in your water. Quick to run and simple to read, it belongs in every well owner's maintenance routine.