Replying to Topic 'TRANSOM SHOWER'
Welcome to the board! First, as a courtesy to others, PLEASE DON'T SHOUT. Second, i think you may be a little confused. Supra had a model through the 80's and 90's named the "Mariah." Coicidentally, the model of my boat. Yours wasn't made by Supra, the actual name of the mfr is "Mariah"; they went out of business in 2001.
Regardless, everyone is welcome here and most members are eager to offer up suggestions.
To answer your question, myturndad is correct. The transom shower gets its water supply from the lake, via the engine's cooling system. If yours isnt working you might check the hoses going from the shower to the cooling system. There could quite possibly be a shut-off valve below deck somewhere.
Cheers,
DKJ
1992 Supra Mariah - Red
PCM 351HO 285hp - PCM 1.23:1 Transmission
OJ XMP 4 Blade CNC 13x15.5RH
"People do weird things to boats" -Unknown