Hi, I'm new to this forum. We are getting ready to install an L-shaped steel/vinyl liner pool. Does anyone have experience with using spray foam insulation on the walls or floor of a steel-walled pool, does it help? Also interested in hearing from anyone who has used an in-deck solar heating system where is pumped through pipes buried in the concrete deck surrounding the pool, heated by the warmth collected in the concrete and returned to the pool. This is also supposed to cool the concrete deck. We are planning to use a stamped design in the concrete deck and not sure if this system will still work. Thanks in advance for any info.