I hear you, my retics and burms do the samething. At first I though it was the food, my larger snakes eat pigs and my smaller snakes eat jumbo rats. I feed my 16ft female retic two 8lb pigs once a week and she urinates almost everyday which completely soaks a 6ft vision cage. Im lucky if she skips one day. Two of male retics (9-10ft range) get fed a 3lb pig every 2 weeks and they urinate about once every 4 days. My other 9ft male retic wont eat pigs so he eats a jumbo rat every week and only urinates about once a week. On the other hand my 2 female burms (9ft and 12ft) get fed a 4-6lb pig every week and they urinate about once a week. My 9ft male burm eats a 3lb pig every 2 weeks and urinates about once every 2 weeks. I have no sub adult retics but my my sub-adult burms get fed a jumbo rat every 5 days and urinate about every 5 days. Im not sure if Im right or wrong (does it really matter, their cages still have to be cleaned) but I’ve come to the conclusion that generally speaking, retics urinate more frequently than burms and that amount depends on what they are eating and how frequently.
Josh
(too many to list, fingers are tired)