For more than 20 years, pumpers and installers have popped the lids on precast tanks to occasionally find eroded outlet baffles, a flaky white substance engulfing exposed concrete aggregate and deteriorating and collapsing walls. Distribution or drop boxes crumbled when touched....
Looking for Concrete Answers
As they evaluate a pattern of septic tank corrosion, experts seek the aid of pumpers who discover deterioration during cleaning and maintenance work
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