That's exactly why I would like to test my water. We don't say that it's not very good if there is a lot of lead in your water and it can affect your health.

Well, I agree with you that you need to test your water periodically. Even if you change the filter, because it's not very good for your health. I came across this once, I think it was here. These sticks are designed to take a sample from the water, or I guess not just from the water. Any surface that you can swab. You can test it for lead. I think you're doing the right thing, so I decided to do it.