Gas locker drainage

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Jools_of_Top_Cat

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I have my gas locker inboard in my cockpit so I will need to drain through a hose.

The Gas man (corgi bss) said this must be fuel grade pipe or fireproof. Thinking of buying a piece of eberspascher exhaust for this purpose, though I do have some that might do the job I am about to ask about.

To drain out of the side of hull above the water line I will need nearly 3' of the stuff and it will have to pass through another locker. To drain straight down through my bridge deck will take about 8" and be approx 6" above the water, but would be straight down.

Can anyone foresee a problem with draining through my bridgedeck, I can't see it being a problem, in fact I think it would be better?

Thoughts?

<hr width=100% size=1><font color=blue> Julian </font color=blue>

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The drain must be 3/4 inch/19mm and be run steadily downhill from the tank. No rises in it at all, to prevent liquid pooling in the hose, and it need to emanate from the bottom or as near as possible, of the tank. BSS calls for fuel grade ISO hose.

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G'day Julian,

Though the bridge deck will be fine, and safer, less hose exposure too. To avoid stains on the underside of the bridgedeck, cut a short 20 mm length of plastic pipe and fix around the exit, this will ensure any water / dirt will drip off the pipe and not dribble along the underside leaving a stain.

Hope this helps.....




<hr width=100% size=1>Andavagoodweekend, Old Salt Oz /forums/images/icons/cool.gif
 
I am not contesting the official position but I am surprised that BSS pipe is required. I can understand this being required when gas is under pressure from the cylinder but not for evacuating leaks.

John

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the only snag with the bridgedeck drain is water coming back up it when a wave slams underneath. a "shell vent" over the exit hole will reduce it.

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Go through the bridge deck and use a 'shell' vent to try and stop the seas coming up. My fuel and battery locker locker are like this though about 18 inches above the water and I have never had any problems, so far, even with 8 people in the aft cockpit !

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whats a shell vent?

<hr width=100% size=1><font color=blue> Julian </font color=blue>

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Ah, found one, I guess pointing aft this would keep the water from coming in, though I doubt a problem it might happen. I hope this would not constitute an obstruction, though it only seems to be a right angle bend in essence.

Thanks for the advice on this one.<P ID="edit"><FONT SIZE=-1>Edited by Jools_of_Top_Cat on 06/06/2003 17:19 (server time).</FONT></P>
 
John, I think the reason being is that LPG, certainly in its liquid form, and most types of rubber are not very compatable.

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