This is coming from prior experience, so take it for what it is worth; But I kept a group that consisted of 13 animals ( yearlings - adults ), and I had the same problem untill I noticed something. I had one animal that would sit in his water bowl constantly. However, after the water was a day old, he would come out. Another thing I noticed is that they would all drink soon after I changed thier water ( I changed it every 2 or 3 days ). So I observed the trend and started changing thier water every 24 hours or so. In about 6 weeks all ( Yes, I said all ) would deficate within 5-10 days of feeding. These animals may be sit and wait hunters, but they seem to dehydrate rather quickly and will be prone to blocking up, or worse, building up urates. I had someone send me a young Female, around 2 or so feet in length. 3 days after receiving she tore her cloaca trying to pass a urate ball. That thing was literally the size of a golf ball. Unfortunately, most peoiple don't realize these animals need a constant fresh water supply, and will have problems if they aren't given the option.