Lead helix activate & balance the earth element of south west corner.
Lead Helix is the best for south west vastu remedy , defect like south-west entrance, water body or kitchen at south west, lower level etc.
Similarly in business places location of entrance, fire placed at south west etc can be corrected by installing multiple lead energy helix in south west direction.
If you main door is at south west corner,simply fix this lead helix above or behind the main door to balance the energy.
Location of master bed room other than south west can be corrected by placing three lead helix at south west corner of the house Any other defect related to south west can be corrected with installation of 3 or in multiple at affected location It can be concealed in the floor or ceiling.