Welcome to Water Talk! This is a place where we offer to share ideas, and exchange information. But most importantly, this is where to come for help. Questions pertaining to water oprations  can be posted so that fellow operators and other water industry professionals may respond with their experiences and recommendations. We encourage all to participate and weigh in on the conversations. There’s a lot of expertise and experience out there that needs to be shared. 

Disclaimer: The information contained in this forum is provided for your review and convenience. Comments are opinions and are not intended to be a sole solution or provide legal advice with respect to any federal, state, or local regulation, nor are they endorsed by, or reflect the view or opinions of CTAWWA. You should consult with your appropriate authorities before undertaking any specific course of action or interpreting any regulations. Comments are moderated before being posted.

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Filter media cracking   

Has anyone ever had any issues with cracks in their filter media. We use multi media filtration and are getting small cracks in the first 1-3" of our anthracite.

Optimum pH for Coagulation  

Now that my water is getting colder, should I target a lower pH (6.0 to 6.5) or a higher pH (6.5 to 7.0) for optimizing organics removal using alum? Thanks for your help.

Manganese Testing  

Hello. I use the HACH low range PAN method for testing manganese. What's the best way to get rid of the sample waste? It contains cyanide, and I don't want to just dump it down the sink.

Coagulation and Flocculation  

What is UV254 testing and how can I use test results to enhance my treatment process?


Iron and Manganese  

Waste Processes  

Drinking Water Regulations  

Corrosion Control  

Dissolved Air Flotation  

Specialized Treatment Processes (THM & DBPs)  


Membrane Treatment Processes  


Instrumentation and Control Systems  

Coagulation and Flocculation  

Taste and Odor Control  

Reservoir Management and Intake Structures