lazarette Drains

J

Jfrano

Well-known member
Joined
Aug 12, 2018
Messages
464
Fluid Motion Model
C-30 CB
Vessel Name
June Sea
All my lazarette drain covers will easily clog and the water to one degree or another ends up In the lazarette. Has been an annoyance since ownership. I’m thinking of just removing the covers. What are people’s experience with this?

Stay well
Joe
 
First thing to do is remove drain covers. All they do is clog.
 
Ughh, why did I wait so long. Ah it’s only the beginning of
Season two. With any luck boat will be At its berth in the Worlds Fair Marina in two weeks!
 
I find my drains continually clogged even with the covers off; maybe even more so with them off because more stuff goes down the drain and gets stuck in the drain flap. I occasionally need to pry the flap open and remove the debris to get it flowing again. I saw another post here where someone put a screw in the flap to open it up and clear the debris. A pressure washer might do it, too.
 
Hamster":x7lvq6w4 said:
I find my drains continually clogged even with the covers off; maybe even more so with them off because more stuff goes down the drain and gets stuck in the drain flap. I occasionally need to pry the flap open and remove the debris to get it flowing again. I saw another post here where someone put a screw in the flap to open it up and clear the debris. A pressure washer might do it, too.
Click to expand...
So remove the flaps.
 
I'm the guy who put the screws in the flaps. They make it possible to reach down between the swim platform and the transom and pry the flaps open with one finger. Just leave the screw head protruding enough to hook it with a fingernail. Over the years these flaps get pretty stiff and dried out. I was actually thinking of removing the flaps this season.

Last week during the Thursday Ranger/Cutwater internet show, I asked the question, "Is there a good reason not to cut the flaps off?" Andrew said, "Critters." So, I'm still thinking about it. Gotta decide before the Governor lets us launch our boats.
 
If critters is the only answer for why to have them, I'm taking them off! Plenty of other ways for critters to get aboard! - I'll try to remember to tape them over during winter haul out!
 
I removed the original flaps and put in aftermarket "softer" ones that open much easier, solved most of my water problems...
 
personally I wouldnt remove the flaps entirely. in a following sea the water might surge up the pipes and may cause a pipe failure.
 
Gavin,

What sort of pipe failure? The other end is open - so no pressure would build. I thought that possible backwatering into the hatches would be more of a concern in a following sea - but I'd be willing to deal with the sump pump running a little to avoid the drains clogging frequently.

My slip is near some big oaks that are forever dropping something or another.
 
a certain diameter pipe can only flow a certain amount of water.
if a wave were to hit the stern directly with enough force, the force may be large enough to push the hoseclamp off the pipe at the stern leaving the bilge open to the sea.

its your call but the flap was installed for a reason.
 
Sorry for my ignorance but what area do the lazarette drains drain? My assumption is the area under the cockpit bench (C-26) but I’m not sure so would like to verify. Thanks.
 
Cutwater28GG":5emrtn0i said:
a certain diameter pipe can only flow a certain amount of water.
if a wave were to hit the stern directly with enough force, the force may be large enough to push the hoseclamp off the pipe at the stern leaving the bilge open to the sea.
Click to expand...
I'd really be interested in understanding the physics behind that scenario.

its your call but the flap was installed for a reason.
Click to expand...
The reason for one thing is that is an ABYC standard. So next question would by why is it a standard?

Many safety related specifications are intended to buy response time. For example fire resistant gas hose is not intended to survive indefinitely when exposed to flame. It is intended to "resist" for a period of time to allow crew to either abandon ship or to supress the fire before the hose fails and makes the situation worse by releasing additional fuel. The flap on the scupper outlets is a flow restriction device(note flow restrictor not preventer) It is intended to limit(not completely stop) reverse flow in the event that something occurs which results in the cockpit floor dropping below the water level. Most likely because the boat is sinking. Similar to the previous example it is intended to buy time for the crew to correct whatever is going on which has pushed the stern of the boat that low. Or to get off.
 
palle":slkoklf2 said:
Sorry for my ignorance but what area do the lazarette drains drain? My assumption is the area under the cockpit bench (C-26) but I’m not sure so would like to verify. Thanks.
Click to expand...
The whole cockpit floor area drains out through several of these on the R29.
 
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