If you're absolutely passing the OCLT then you don't need to shock.
What does the water look like? Is it clear or cloudy and what color?
I know you stated it was cloudy but lets take a look at it again.
Also post a full set of test results. (you stated in the results that your CH was 30 but then said it was 330).
There are lots of complaints about cloudy pools using Zeo Sand.
When you open the filter the media should be level and not clumped. If it's clumped there is a procedure for cleaning it but if you read the reports on the net that hardly ever works for more than a few days.
What does the water look like? Is it clear or cloudy and what color?
I know you stated it was cloudy but lets take a look at it again.
Also post a full set of test results. (you stated in the results that your CH was 30 but then said it was 330).
There are lots of complaints about cloudy pools using Zeo Sand.
When you open the filter the media should be level and not clumped. If it's clumped there is a procedure for cleaning it but if you read the reports on the net that hardly ever works for more than a few days.