Tide
Well, Steve, dad had the station from 1959 (through 1984, 25 years? 27 years? 1989, 30 years? I don't recall now when he sold-out the business) so I'm sure it was phosphated back in the day. They did use Tide there for washing the service bay concrete floors and front lot. Bought it by the case, so we always had it at home also. Which is one of the reasons it was so hard to get mom to try different detergents (Salvo, Dash, All, Oxydol, Cold Power, etc.).
As many times as the LJA-3200 suds-locked, I don't remember it triggering the water level switch, so must not have been very often if it did. I know spin slowed down to a *crawl* in the worst blockages so maybe it didn't kick the accumulated water up high enough. I was quite surprised when the LDA-7800 arrived as it *rarely* suds-locked.