An update on Louise. She is loving her shilintong and seems a lot perkier of late. Last week, I noticed a bit of gritty/sludgy urine that was either from her or our other stone pig, Marmot. It hasn't reappeared, and I'm trying to get Marmot some shilintong too when she will take it. She is a better bottle drinker. I am wondering if the one off of grit/sludge could have potentially been due to the shilintong working (i.e., if it dissolved the stone, would one see evidence? We will be going back for x-rays for both pigs soon, so will get a definite answer then, but was curious if others had observations.