Ive got access to RO water thats being produced at 2-3ppm. Would you guys find this acceptable for mixing with salt? I have RO/DI water at home that I use for top offs thats reading 0 ppm and I'll continue to use that. But at my shop our RO machine is just way more efficient. Its dumping 1 gal for every 3 gals it makes. Thoughts?