Dimension One Spas 01510-1030 - Manual (Page 18)

Sonic Immersion System Dealer Installation Guide
The photograph above may not look
like your spa, refer to Table 3.
3. Once the plug is exposed, use a screwdriver to punch holes
in the foam large enough to insert your hands and pull the
plug out of the spa.
The plug may not come out in one
piece.
14