outsidetank

So I'm planning on using an Apex to handle the NSW for my tank, and one thing I'd like to be able to do is read the salinity of the NSW that's in the "ready to use" storage-tank while I'm using the "in-use" storage tank. The wrinkle is that these tanks are outside, at the other end of the house...

So I want to hear what y’all think. I live in arizona and the weather can get hot and lots of sun. However where I live in the winter it gets cold! I’m guessing a good swing is anywhere from 15-115 degree F. That being said I am about to move into a RV/5th wheel… and own a 140 gallon tank with a...