Seaflo Manual Marine Toilet - CompactProduct Overview SEAFLO Manually Operated Marine Toilet can be installed in both power and sailing craft, either about or below the waterline, for use on sea, river, lake or canal. Your installation may discharge the waste either overboard (provided that your national and local regulations allow this), or into a treatment system, or into an on board holding tank. Baked enamel seat & cover in compact or regular size Twist 'n' Lock handle eliminates