One thing to be aware of, is some filters system have been found to introduce microplastics. I think it’s primarily the container/piping that does this, but it’

One thing to be aware of, is some filters system have been found to introduce microplastics. I think it’s primarily the container/piping that does this, but it’s been a long while since I’ve looked at things. It’s not unreasonable to consider the filter housing also as a source.