Originally Posted by
TheAnglerExperience
Hardware store PVC fitting called a "Double Wye" google it. Now imagine running your rear and front seat poles through the center of them. Use the Y shape connections that angle out from the side to hold rods, or expand from them to create anything you want.
Other fittings such as "cross" or "double sanitary tree" are also good building blocks to start with that will fit your chair poles.
It's cheap and it is a great way to not drill or scuff up your fiberglass with clamps