Quote Originally Posted by 2inthecountry View Post
Your picture looks like my filter/pump but is is Premium Blue instead of Carefree. Don't know the difference offhand..
Probably a sort of private label for your retailer. This likely means you can use Waterway parts.


I got DE and added it. It "poofed" some out of the return, then cleared up. Pressure is 25 lbs. which is normal as far as I know.
The pressure is too high -- that suggests your pump is too big for your filter. That's very, very common on AG pools. The DE test results would suggest that your filter does have some problems, but is still working well enough to capture the DE, after the first batch 'sticks'.

You might try another cup -- if it does not 'leak', that's confirmation of my interpretation.

Regardless, you'll get better filtration if you slow the water down, by putting a valve in the line between the pump and the filter, and throttling it somewhat. Your filter has also probably been losing some sand during backwashes and is a bit low.