Air from bilge pump

[stranded]

Suspect the answer is going to be way shorter than the question, but would a manual or electric bilge pump push enough air to be of any use whatsoever to someone (me) scrubbing the hull at say 1m?

 

[billskip]

Suspect the answer is going to be way shorter than the question, but would a manual or electric bilge pump push enough air to be of any use whatsoever to someone (me) scrubbing the hull at say 1m?

You will probably drown yourself, but if you lucky may be gasping and hiccups.

Rule of thumb for every foot of water you need ½psi pressure better you use a snorkel and practice holding your breath.

 

[Refueler]

You can buy SWBA .... Shallow Water Breathing Apparatus ....

But personally - I would be wary of diving under to scrub ..

 

[stranded]

Suspect the answer is going to be way shorter than the question, but would a manual or electric bilge pump push enough air to be of any use whatsoever to someone (me) scrubbing the hull at say 1m?

Alright, alright!

 

[stranded]

You can buy SWBA .... Shallow Water Breathing Apparatus ....

But personally - I would be wary of diving under to scrub ..

I am, but each year when I get a quote for a lift and scrub I clutch at straws… which sound like they’d be no less use than my latest brainwave. Next instalment, January ‘25….

 

[BobnLesley]

You can breathe through a snorkel with a hose/float attached, though you need to use a one way breathing technique: In via the snorkel, then block that with your tongue while you breathe out past it; you can get the air in via the snorkel okay but you can't get the CO2 back up to the surface through it.

 

[snowbird30ds]

A bilge pump will only push air if a diaphragm type.
I'd look for a lift and pressure wash.

 

[johnalison]

I’m not sure that it is possible to inhale air at one metre unless pressurised. A diver will know the answer, but I seem to remember that the critical depth is surprising little.

 

[BobnLesley]

I’m not sure that it is possible to inhale air at one metre unless pressurised

I'm glad I didn't know that when I used the technique on our boats (1.2m & 1.6m drafts) I might've drowned .
To be truthful, the deeper drafted one was more of a struggle, you couldn't draw much/any air while down by the keel bottom.

 

[Stemar]

Surely there's somewhere nearby where you can dry out against piles or a wall to scrub off? A pressure washer from Toolstation will cost a lot less than an hour in a lift.

 

[Refueler]

We have a friendly Diver in Ventspils ... cash in hand .... retrieve item - 20e .... if its a long job .. then it starts at 20e an hour but per hour reduces depending on length of job ..

 

[stranded]

I'm glad I didn't know that when I used the technique on our boats (1.2m & 1.6m drafts) I might've drowned .
To be truthful, the deeper drafted one was more of a struggle, you couldn't draw much/any air while down by the keel bottom.

Thanks - might have a play at that. Probably not for scrubbing but maybe in emergency for a rope round the prop or something.

 

[stranded]

Surely there's somewhere nearby where you can dry out against piles or a wall to scrub off? A pressure washer from Toolstation will cost a lot less than an hour in a lift.

I’d have a go if we were smaller, but at 44ft and around 13 tons the forces involved if get it wrong scare me a bit.

 

[billskip]

I’d have a go if we were smaller, but at 44ft and around 13 tons the forces involved if get it wrong scare me a bit.

It's you self control that is the danger, when something goes a little wrong it's your ability to control yourself and not go into panic, this with some people is difficult. I'm sure some drownings were possibly preventable if the person did not panic.

It doesn't take much water in your lungs cause serious grief.

Just think about choking on something, we have all had things "go down the wrong way " a mouth full of water a couple of feet down .....