Sorry to keep asking so many questions but you guys are really helpful. On the bottom of the cig almost half way back there are 2 brass fittings that look like water inlets or drains one is larger than the other, they are before the steps, what are they for?

Do you have a head (toilet)?

Do you have the hook up for the shower head in the cockpit?

Should or could be the pick ups for the above.

If you have a sink you should have a seperate tank for your water.

i have a toliet but no shower or sink there is a ice chest and a spray hose on the stern also i have a filler on the port side for water i assumed there was a holding tank for the toliet and hose. there is a drain in the ice chest

The 2 bronze fittings are for the head.....one for water in.......one for waste out......spray hose=shower.........the ice chest drains into the bilge.
Thee water holding tank is NOT for the head, its for the shower. You also have a separete holding tank for the crapper.