The objective of this study is to evaluate the safety and efficacy of BLI4700 as a bowel preparation prior to colonoscopy in adult patients.

Key Inclusion Criteria:

1. Male or female outpatients who are undergoing colonoscopy for a routinely accepted indication.
2. Have previously had a colonoscopy performed
3. At least 18 years of age
4. Subjects must be scheduled for a morning colonoscopy (prior to 12:00PM)
5. If female, and of child-bearing potential, is using an acceptable form of birth control.
6. Negative urine pregnancy test at screening, if applicable
7. In the Investigator's judgment, subject is mentally competent to provide informed consent to participate in the study

Key Exclusion Criteria:

1. Subjects with known or suspected ileus, severe ulcerative colitis, gastrointestinal obstruction, gastric retention, bowel perforation, toxic colitis or megacolon.
2. Subjects who had previous significant gastrointestinal surgeries.
3. Subjects with uncontrolled pre-existing electrolyte abnormalities, or those with clinically significant electrolyte abnormalities based on Visit 1 laboratory results.
4. Subjects with a prior history of renal, liver or cardiac insufficiency
5. Subjects with impaired consciousness that predisposes them to pulmonary aspiration.
6. Subjects undergoing colonoscopy for foreign body removal and/or decompression.
7. Subjects who are pregnant or lactating, or intending to become pregnant during the study.
8. Subjects of childbearing potential who refuse a pregnancy test.
9. Subjects allergic to any preparation components.
10. Subjects who, in the opinion of the Investigator, should not be included in the study for any reason, including inability to follow study procedures.
11. Subjects who have participated in an investigational surgical, drug, or device study within the past 30 days.

7 days