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