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

WillhoundWillhound Lake Simcoe, Ontario, CanadaPosts: 1,432Member ✭✭✭✭
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" - 2000 FV270
Post edited by raybo3 on

Best Answers


  • WillhoundWillhound Lake Simcoe, Ontario, CanadaPosts: 1,432Member ✭✭✭✭
    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" - 2000 FV270
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