Hi! Would appreciate any advice. I purchased a new CSPDI 90 Spectrapure RODI unit. Right now, I'm generating about 30 gallons of waste water (!!!!!!) to about 3 gallons of product water. Even though I'm using it for plants, it's a terrible waste. I understand the ratio is supposed to be 4:1. Any ideas for me? How do you work with the flow restrictor? Not sure how it all works.... Thanks in advance!