A new issue has developed with my sand filter (I think it's the sand filter anyway).
Here's the problem: I put the sand filter in filter mode, and the PSI is 14 (it used to be 10, but I eliminated an air leak on the pump basket, so I'm assuming the filter pressure would rise due to lack of air?)
When I backwash, after the backwash is done, I hear and see sucking of air through the backwash line on the filter (i.e. it sucks the backwash line flat and I can hear air rushing in - it seems to be through the backwash output.)
I put the filter in rinse mode, rinse the filter, and put it in filter mode. Now, the past few times, turning the pump back on after backwash / rinse / filter - the pump has lost prime.
I'm perplexed, as I don't have any suction side leaks at this point in time, but since the filter is on the pressure side (And there aren't any leaks) I have no idea what could be causing this issue.
Thanks for your help in advance!