Great Strategies! Ideally
nutrient should be kept between 68-75. Obviously it CAN be kept a little cooler and much warmer than this. You may want to introduce a cooling loop into your system...I took the liberty of sketching one up real quick to give you an idea of one (pardon the crudeness, it was a quickie). It would be built onto your existing system and would only need some more pipe and 2-shutoffs to direct/redirect flow. Obviously you can loop the pipe underground, double back (with some seperation, etc). Only possible consideration from current system is if your
pump can handle the increased pressure demand? If you cant dig, can also run this under the crawl space in your house (not most ideal for many reasons, but if you live on rock...it works" Best of Luck Matt-hydroponica.blogspot.com
At anyrate I hope you dont get dioscouraged/feel overwhelmed...this stuff is supposed to be fun and interesting