I've never used
NSW, but I understand there are 2 possible drawbacks. 1) you'll want to collect offshore where the water is less poluted. 2) unless you live in an area that supports a reef or reefs, the buffering capacity of the water can be quite low. You can always buffer it of course, but collecting offshore might be a little more of a chalenge.
I believe we have several members who use or have used
NSW. Hopefuly they will chime in.
