Not Working? | Southwest Water Innovations LLC

Practice at Home First

We recommend trying these chemicals out at home before using them in the field. Getting a feel for dosing, mixing, and settling on water you understand makes it much easier to diagnose problems later, when it actually matters.

A scale that measures in hundredths of a gram (0.01 g) is very helpful. The included scoop is reasonably accurate for a roughly 1 g dose of PFS, but it's far less accurate for the smaller quantities of the other chemicals.

This is an inexpensive scale that works well for this: 0.01 g digital pocket scale on Amazon.

Most Issues Are pH-Related

The most common issues you're likely to encounter come down to pH. If you're not getting results, try adding a pH modifier first, then add more of the coagulant or flocculant.

It's very easy to overdose. Adding too much coagulant doesn't just fail to help — it can flip the particles' surface charge and cause charge reversal / restabilization, which is the opposite of the destabilization you're trying to achieve. If more product makes things worse instead of better, you've likely overshot the dose — back off and re-check pH before trying again. See the dosing instructions for stock-solution strengths and dose ranges.

Still Stuck?

The r/WaterTreatment subreddit is full of useful information about water treatment, and with 66k weekly visitors who may have already answered your question.

If all else fails, reach out and we'll try to help you work through it.