Marine toilet sizes
Boat toilets come in several sizes because boats--and head compartments on them--vary in size. The toilet has to fit the space and still leave room for knees when sat upon and room to stand in front of it. Hence, the smallest "compact" models, which were designed to go on small boats. But because they cost less than "standard" size toilets, many boat builders use "compact" toilets as standard equipment on ALL their boats, and offer larger manual and electrics as optional upgrades (for a higher price, course). Standard size manual (and some electric) toilets are available in two bowl sizes--the so-called "standard" bowl, which is same size bowl that fits the compacts...and the larger "highboy" bowl which is closer to household size. The very high electric toilets offer true household size bowls...which, btw, is 19" front to back--including the part the seat bolts onto, and 15" high--from the floor to the edge of the seat. However, because all toilets are shipped to the stores with "standard" bowls, and few boat owners ever bother to do ANY homework before shopping for a new toilet--whether it's a replacement or on a new boat--they don't ask, and nobody tells 'em, that larger toilets than the 3 "cheapies" on the shelves at all the stores are available, and even the "cheapies" (except for "compact" models) can be ordered with the larger "highboy" bowl. On many boats, the problem of height is--or can be--solved by putting the toilet on a raised platform. Your intake odor problem can easily be solved...read the article "Intake Odor Problem Solved" (or something like that) in the Head Mistress forum Reference Library (on the forum home page). It describes a simple, inexpensive and permanent fix that works on 90% of boats. However, because fresh water flush requires pressurized water, it cannot be done on a manual toilet... Only electric macerating toilets and the over-priced VacuFlush are available with a "fresh water flush" solenoid option.
