Hi nalis,
Thanks for reaching out and for also providing us with your feedback. The current version of our KPF-1602 is Cal-Green certified. In order for us to meet this Cal-Green certification, we changed the water flow specification from 2.2 Gallons per Minute (GPM) to 1.8 GPM which is the new industry standard and we are ahead of the curve with this improvement.
If we continued to manufacture the previous design, where both the pot filler and the sprayer can be on at the same time, at a 1.8 GPM, there would hardly be any pressure coming from either.
We have removed the cartridge that was located at the pot filler. Removing the cartridge from the pot filler, where there was previously a on/off handle means less maintenance and makes the pot filler spout more of an everyday use faucet.
There's now a diverter inside of the faucet that allows the water to switch between the sprayer and the pot filler. You can lock the sprayer handle in place, so that water comes out of the sprayer when you turn the faucet on. If you unlock it, you will be manually operating the sprayer.
I'd also like to see if I can assist you personally and address your concerns. All Kraus products include a Limited Lifetime Warranty with ou main goal being that you are 100% satisfied with your Kraus product. I went ahead and opened a case for you with our Customer Service Team: Case: 146492. Please feel free to call email us at customerservice@kraususa.com or call us at 800-775--0703 and refer to your case # 146492. I hope to hear from you soon and thank you for providing us with your feedback.
Best,
Mike
Kraus USA