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When I clean my salt cell, the water flows backward from the filter into the pool, dumping de and other stuff through the skimmer and into the pool. The filter is a PacFab FNS Plus 48 and has a backwash valve that you twist and pull up to put into backwash mode.

I did the usual spring startup routine a few weeks ago: sprayed out the filter, de-scaled the salt cell, got the ph and alk right, added salt, scrubbed some algae. Now after a few weeks of getting readings on the ecomatic box around 33, I'm getting nothing on the display and two red lights...