DI Resin being depleted after 6 Gallons of RO..

So I just setup my RO/DI 6 stage filter system. I have well water and good pressure. After about 6 gallons of RO water made i noticed that the DI resin has already started to change color. When i lived at a different location i had public water and would made hundreds of gallons before I noticed

RO/DI Solution to High CO2

RO Buddie Color Changing Mixed Bed Resin Deionization Filter Cartridge –

How to Recharge DI Resin by David Sanders

Top 5 Tips to Reduce DI Resin Consumption in Your RO System

All You Need to Know About Deionization – DI 101

BEWARE! These RO/DI Water Mistakes are sending $$ down the drain! Your reef tank deserves better.

At what point do you guys change your filter and resin im upto 11ppm DS tap is 145 filters dont have a spec of yellow on them but resin is prolly spent.

Purolite Mixed Bed Indicator Resin 60/40 RO Reverse Osmosis Marine Aquarium Tank

What's wrong with my RO/DI Canister? - General Discussion - Nano-Reef Community

PRO Series Cation DI Resin (Color Changing) - Part 1 - Bulk Reef Supply - Aquarium Supply Online

Is this normal for DI Resin?

How to Recharge DI Resin by David Sanders