Is it OK to drain my softener into our septic tank drain field?

Recent studies reaffirm older testing that proved this practice to have no deleterious impact on septic systems. However, some septic tank manufacturers have limited their warranty coverage in the past when softeners were found to drain to their tanks and should be consulted if warranty coverage still exists. The study linked below shows a recent change in warranty coverage to authorize softener discharge as a result of a major tank manufacturers extensive testing.

Study: Softener Discharge Versus Aerobic Wastewater Treatment Units – PDF.

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