No - Electra San is not a legal substitute for holding tanks in the USA. Although the unit has a miniscule holding tank
as part of it. You also need a "locking" device on any overboard
"Y-valve" system that would allow waste to be discharged through a thru-hull valve. Grey water and bilge for recreational vessels is not regulated - yet.
- - In "no-discharge" zones you may not discharge anything from a MSD or holding tank
and in some places like Catalina Island
the Rangers board your boat to inspect your "locking device" and then drop a florescent tablet into your MSD and flush it into the holding tank. During their daily rounds of the anchorage if they see any dye outside your vessel you will be fined.