Okay, here goes as best I can explain it.
I have a 9 month old BA who had an impacted crop in October. It took about three weeks for this to "disappear". I messaged her crop and fed her a little bread soaked in olive oil. At that time she began to drink much more water than usual. Her crop made a sloshing sound when she shook herself. She visited the waterer much more often than the others and drank much more while there. I assumed she was drinking more because she was impacted. She also began to have very mushy poop which has slowly become projectile water and is almost clear at times.
First part of November she stopped laying and began to have a mini molt. She was not eating as much at that time. My vet did a fecal exam, found lots of parasites and a few cocci. I've wormed with Wazine and followed that with fenbendazole. Also have given them 5 days of Corid. At the end of the Corid treatment she had stopped molting and started laying again, regularly.
Today was day 5 of meds designed to attack bacteria. I got these from Peter Brown. So far there has been no change in the amount of water she consumes or the projectile poop.
To complicate this just a little more, I now have two other pullets drinking more than usual and starting to have mushy poop. All of my six chickens seem energetic and are eating much better than before the worming.
My question about excessive water drinking was to see if anyone else has experienced this and to learn if chickens can develop a habit of drinking too much water.