hi, i'm interested in trying oil retention enemas to help with constipation but am not sure what type of enema equipment to use. i.e. i don't want to use my standard equipment because it will get all oily. can someone recommend a good disposable product to administer a retention enema. would a standard disposable bag work. or is there something better? also, i understand that with oil retention enemas you should try to hold them for longer than an hour so do you leak out oil during this time? or will it mostly stay in until the urge comes to release?