Mom is on Lasix 40 mg. Does kitty litter last more than one time in the commode? What if she has bowel movement? What do you use to clean her area with after urinating. How much kitty litter do I put in? What kind of kitty litter do you have? The commode liners are expensive... 7 for 10.99. What is an economical way to go with this? I don't know how long she will be on Lasix. Thank you everyone.