How many enemas a day

Does anyone know how many enemas you can do at one time and still be healthy? I have done three in a row and still nothing comes out clear any thoughts on the subject. So I do another later in the day and if I am not to busy one more before bed. Will I get an electrolye imbalance with so many in a day. Althought most of the tiem it is only two a day regularly. One in the morning and one at night. Thanks a bunch for your response