Thats just NOT true, Jansens used NSW for years and still sometimes" Even u asked me to deliver u a 1000L a while back! The ONLY reason u dont use it is its INCONVINIENT as u live in the sticks
Depends on the weather i usually go around 1-2 hrs b4 high tide as long as there hasnt been heavy rain for a couple of days. I stand on the wall & dip 20L buckets in, I get 200L in about 10 mins. I take it home add 10% filtered freshwater & do a waterchange.