It`s the correct voltage

The WiTRO system uses a certain kind of alternating current of max. 6 volts corresponding  to the effect of approx. 2.8 volts.  It is extremely important not to exceed this maximum voltage as any stronger current will cause a corrosive effect on mortar and metal-binding materials (pipes, steel girders, etc.). With it`s low current the WiTRO system avoids these kinds of reactions.
Another advantage of  the electro-osmosis walldrying is the minimal loss of salt during restoration. The majority of the moisture trickles back into the ground through the capillary system within the wall, therewith also transporting the salts back into the ground. Only a small amount of moisture evaporates on the surface of the wall limiting also the amount of salt deposits.