I am getting ready to install a intex swg and two 2"20" solar heaters. My first ? is I need to know if I should put the swg inline before or after the solar heaters, I think it suppose to go after the solar heaters but im not for certain. I would like to have put the solar panels on the roof, however My roof faces north and south no east west
So I am going to place them next to the pump. Should I just put some sand down to make a nice flat level surface or should I build some type of platform for them? Thanks a lot!!!