My mare is 10 years old, and she has had issues with very mild diarrhea for years. I just realized that she had this issue before I bought her almost 7 years ago. When I bought her she had a dirty stained tail which I didn't attribute to her digestive issues until last month. Currently her manure is a mixture of normal looking but wetter than normal with the little liquid squirt at the end, and occasional piles of softer shapeless but mounded manure. She has no cow patties or puddles. Usually just a dribble of liquid on her tail or hind end. She is very healthy in every other way. Her history... She has always had very heavy, wet, but pretty well formed manure. I didn't realize this until my current BO mentioned it to me almost 5 years ago. After being at her facility for a good 6 months or so being fed a mixed grass alfalfa hay, her manure finally became normal. Unfortunately, because of enteroliths, she has to be on straight orchard hay, and since then the mild diarrhea is back. My vet put me in contact with Dr. Altman who developed The Assure System, and his nutritionist said to feed straight orchard. I have access to orchard/timothy, but the nutritionist said there was too much protein...I think...in the Timothy. There seems to be a lot of people with the same issues feeding straight Orchard hay..to certain horses... from different growers and in different parts of the country. My gelding is on the same hay, and he has no issues. The only digestive health related issue I have faced with my mare is having a really difficult time getting sand out of her gut....which I am sure caused the enteroliths. For 5 years, I battled sand in both my horses. Both horses had PPE when I bought them, and both came to me with sand already. I had always fed 7 days of Sand Clear...didn't work, vet suggested 30 days...still didn't work, vet suggested 30 days every 3rd month...still didn't work. I feed my horses out of Port-a-Grazers, and she wears a grazing muzzle because she would nibble around in the sand arena for loose hay that was blown in there. Still the same diagnosis every 6 month...SAND. Finally, I did the sand clearing protocol using Assure and Assure Plus, and my horse is finally sand free! My vet always thought all psyllium products worked the same, but now she knows that they don't. Assure Plus was a god send for my two horses. Assure and Assure Plus were supposed to help with the diarrhea...but it didn't. She is still on the Assure Plus for sand. Bio-Sponge and Platinum's probiotic doesn't seem to be working to correct the issue. I spoke to someone at Platinum Performance and followed their treatment protocol, and her maure went back to normal...it took 1 1/2 scoops AM and PM. When I started to taper down, the problem returns. She is currently on 1 Scoop AM and 1 Scoop PM plus the probiotic. The vet does fecals on my horses spring and fall...which are usually negative considering I live in the desert and horses aren't kept on pastures here, and they get Equimax or Quest Plus twice a year. The vet was just out on Friday to do spring shots, and I talked to her again about the mild diarrhea. She is going to come back out to pull blood and get another fecal sample to check for anything that could explain the chronic mild diarrhea. She couldn't do it Friday because she wouldn't be back in the office until Monday, and she said the fecal sample has to be really fresh. I asked about ulcers several times, and she always said no because she has no other symptoms. I asked her again, and she said maybe colonic ulcers. I thought about trying to treat her with Abler's Abprazole to see if it helps. I would really appreciate anybody input on this. It is a constant cause of stress for me because we can't seem to figure it out!