Identification of Thru-hull drains...and low phosphate soap options

WillhoundWillhound Lake Simcoe, Ontario, CanadaPosts: 1,267Member ✭✭✭✭
Killing two birds here, but related thoughts to do with draining overboard. Being new to a cruiser I will admit it's been an education. Please don't laugh, but I always naively assumed that the only water being used and discharged on a boat came from the freshwater tank, and drained into the waste tank, with the exception of bilge pumps of course. Who knew that the head used a seacock/water intake? And it, of course, pumps into the wast tank. Everything else uses freshwater, but drains I know!

Noticed on my 2000 FV270 that there are a couple of extra thru hull drains that I can't think of a reason for. The two chrome one's at either side of the bow I assume are for the anchor locker?
There is one on the port side under the aft porthole, I assume for the head sink?
There are 4 on the starboard side, three on a lateral line about a foot off the waterline and one down lower just above the waterline. 1 for galley sink, 1 for shower sump drain, 1 maybe for mid-ship bilge pump? And 1 I can't think of...or is this the aft bilge pump drain? 

And the second part of that...with dish, shower and wash water draining overboard, does anyone have recommendations for good low-phosphate soap/shampoo/dish detergent options?
Phosphate (and the elimination of it) has been a big focus on the lake, and all the marina's are pushing for low phosphate, or even the elimination of soap on board.

"Knot Quite Shore"
Post edited by raybo3 on

Best Answers


  • WillhoundWillhound Lake Simcoe, Ontario, CanadaPosts: 1,267Member ✭✭✭✭
    Thanks J3ff. Should have thought about a drain for the step down.
    No Air conditioning though. Did they just pop through the drain anyway? Would it be plugged inside? 
    "Knot Quite Shore"
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