Put the 3 pcs post brackets on each position on the base as
1-1.
shown in the picture.
1-2.
Use 3 pcs M8 x 16 mm bolts to join the post brackets and stand.
2-1.
Put the post on the top of 3 pcs post brackets.
2-2.
Use 6 pcs M6 x 35 mm bolts and nuts to connect the post to the
3 pcs post brackets. Tighten the bolts and nuts.
Place the tank housing on the stand.