Our Combo Shock drain field treatment restores the soil.

The Combo treatment can restore drainage to drain field soil in over 90% of applications. Septic Perc opens the soil in hardpan conditions and clay soil, while Mega Bio reduces the biomat, restores drainage, and reinforces the natural beneficial bacteria; a powerful 2 - pronged attack.

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There is no single product available that will solve all septic system drain field problems, but our COMBO SHOCK treatment will come close. In laboratory tests and field trials Septic Perc performed as well or better than older style products at opening soil in hardpan conditions and clay soil, and our Industrial-Grade Mega Bio is the best biological septic system treatment available at a value price.