Those instructions are for most RODI
units. Not all units come with the all the parts mentioned. so check to make sure the saddle tap is included, or how much extra it costs.
units produce different amounts of water depending on the RO
membrane. I have the 150GPD (gallons per day) membrane in my Typhoon III. I replaced the original membrane last year after 5 years of service.
units will waste about 4x the amount of water produced. It all depends on how efficient the RO
membrane is, the pressure of the tap water and the temperature.
units produce best with water over 50 degrees and about 60 - 70 psi.
I have a booster pump to bring my 45psi tap up to 70psi for my RODI
unit and it now produces water at the rated 150 gallons per day (6.25 gallon per hour).
You need to check on the RO
membrane efficiency too. The 75 and 150 are in the 98% range and the 100 is about 92% (from memory).