Vertical NFT with external reservoir.

Hey all,
Just want to throw an idea out there and let you pick it apart.
I'm about the wrap up my first grow in a couple weeks. I've learned a ton from this forum and all the helpful growers within, thanks.
Due to the huge pain in the ass it is to change the res. and check PPM & PH in an DWC tub. I'm considering a vertical NFT setup with the res. actually located outside my 3.5 X 5 ft. grow closet. This would allow me to connect the res to a water supply. There is also a float valve in the res. I could check levels any time and easily.
Any thoughts appreciated.
Still working on the design. I'll post when complete.