Hi,

I'm prepping the bottom of my sailboat for barrier coat then ablative
bottom paint.

I'm thinking, however, that it might be a good idea to paint the prop
with something like Trinidad instead of ablative. It seems to me that
the ablative won't last long on the prop.

What's the conventional wisdom here?

Thanks,

Mike.

"beaufortnc" wrote in message
ups.com...
I'm thinking, however, that it might be a good idea to paint the
prop
with something like Trinidad instead of ablative. It seems to
me that
the ablative won't last long on the prop.

What's the conventional wisdom here?

Well, once a month I take a swim with a wire brush, take a few
deep breaths and the see how long I can stay underwater hanging on
to the prop shaft. But then I'm in warm water (never less than
18C) and it's clean and clear.

Sorry, didn't really answer your question, but that's my
conventional wisdom on the subject.

JimB

"News f2s" wrote in message
...

"beaufortnc" wrote in message
ups.com...
I'm thinking, however, that it might be a good idea to paint the prop
with something like Trinidad instead of ablative. It seems to me that
the ablative won't last long on the prop.

What's the conventional wisdom here?

Well, once a month I take a swim with a wire brush, take a few deep
breaths and the see how long I can stay underwater hanging on to the prop
shaft. But then I'm in warm water (never less than 18C) and it's clean and
clear.

Sorry, didn't really answer your question, but that's my conventional
wisdom on the subject.

JimB


hmmm... Ever thought of attaching a regular snorkel to some larger hose?
Vacuum hose is great with a float at the loose end. You can stay down a lot
longer. Some of the co2 you exhale will get re-inhaled each time. I havent
passed out yet though.. Fingers crossed.

DP

On Mon, 21 Nov 2005 10:49:53 +1100, "d parker"
wrote:


"News f2s" wrote in message
...
///

Well, once a month I take a swim with a wire brush, take a few deep
breaths and the see how long I can stay underwater hanging on to the prop
shaft. But then I'm in warm water (never less than 18C) and it's clean and
clear.

Sorry, didn't really answer your question, but that's my conventional
wisdom on the subject.

JimB


hmmm... Ever thought of attaching a regular snorkel to some larger hose?
Vacuum hose is great with a float at the loose end. You can stay down a lot
longer. Some of the co2 you exhale will get re-inhaled each time. I havent
passed out yet though.. Fingers crossed.

DP


How about a y fitting from the snorkel to two vacuum hoses, the float
on one would have a caged ping pong ball for an outflow only
and the float on the other would have a soft sprung flapper for an
inflow only??

Brian Whatcott Altus OK

Brian Whatcott wrote:
On Mon, 21 Nov 2005 10:49:53 +1100, "d parker"
wrote:


"News f2s" wrote in message
...

///


Well, once a month I take a swim with a wire brush, take a few deep
breaths and the see how long I can stay underwater hanging on to the prop
shaft. But then I'm in warm water (never less than 18C) and it's clean and
clear.

Sorry, didn't really answer your question, but that's my conventional
wisdom on the subject.

JimB


hmmm... Ever thought of attaching a regular snorkel to some larger hose?
Vacuum hose is great with a float at the loose end. You can stay down a lot
longer. Some of the co2 you exhale will get re-inhaled each time. I havent
passed out yet though.. Fingers crossed.

DP



How about a y fitting from the snorkel to two vacuum hoses, the float
on one would have a caged ping pong ball for an outflow only
and the float on the other would have a soft sprung flapper for an
inflow only??

Brian Whatcott Altus OK


All you need is an exhalation valve at the mask, and an iron lung to
enable you to suck air below about 4 feet. Try it, just suck in
through the mouth using a harden hose and exhale through your nose.
Good luck.

Or a powered snorkel pump on a float on the surface, know as a
hooka, and some dive weights.

Terry K

"Terry Spragg" wrote in message
...
Brian Whatcott wrote:
On Mon, 21 Nov 2005 10:49:53 +1100, "d parker"
wrote:


"News f2s" wrote in message
...

///


Well, once a month I take a swim with a wire brush, take a few deep
breaths and the see how long I can stay underwater hanging on to the
prop shaft. But then I'm in warm water (never less than 18C) and it's
clean and clear.

Sorry, didn't really answer your question, but that's my conventional
wisdom on the subject.

JimB


hmmm... Ever thought of attaching a regular snorkel to some larger hose?
Vacuum hose is great with a float at the loose end. You can stay down a
lot longer. Some of the co2 you exhale will get re-inhaled each time. I
havent passed out yet though.. Fingers crossed.

DP


How about a y fitting from the snorkel to two vacuum hoses, the float
on one would have a caged ping pong ball for an outflow only
and the float on the other would have a soft sprung flapper for an
inflow only??

Brian Whatcott Altus OK


All you need is an exhalation valve at the mask, and an iron lung to
enable you to suck air below about 4 feet. Try it, just suck in through
the mouth using a harden hose and exhale through your nose. Good luck.

Or a powered snorkel pump on a float on the surface, know as a hooka, and
some dive weights.

Terry K


Yeh the harden hose is difficult at longer lengths. So is garden hose. Thats
why, in my initial post, i recomened a larger diameter hose you see

DP

"Terry Spragg" wrote in message
...
Well, once a month I take a swim with a wire brush, take a few
deep breaths and the see how long I can stay underwater
hanging on to the prop shaft. But then I'm in warm water
(never less than 18C) and it's clean and clear.

hmmm... Ever thought of attaching a regular snorkel to some
larger hose? Vacuum hose is great with a float at the loose
end. You can stay down a lot longer. Some of the co2 you exhale
will get re-inhaled each time.

How about a y fitting from the snorkel to two vacuum hoses, the
float
on one would have a caged ping pong ball for an outflow only
and the float on the other would have a soft sprung flapper for
an
inflow only??

All you need is an exhalation valve at the mask, and an iron
lung to enable you to suck air below about 4 feet. Try it, just
suck in through the mouth using a harden hose and exhale through
your nose.

OK. Full story. Snorkel is attached to a long hose which goes up
to the deck. Mask covers nose and eyes only. I breath out through
the nose (which then bubbles out through the edges of the mask,
good one way valve) and breath in through the snorkel. No need for
any balls (unless the alligators are hungry). I've scrubbed a
whole bottom this way.

But I don't recommend anyone doing this unless they do some
shallow water practice first, sitting in a pool. Ask a friend (!)
to disconnect/block/duck the hose end into the water at random
times to familiarise yourself with recovery routines. Then do this
deeper. The purpose of these practice sessions, which you should
do several times, is to get the feel of an imminent mouthful of
water coming down the line, and develop routines to reduce your
panic levels when it happens. Otherwise, feeling that gurgle in
the pipe when you've just breathed out is quite a downer . . .
don't ask.

Oh, and have someone on deck looking out for you, with a bit of
string to give you a couple of tugs if you should quickly come up
for some reason.

JimB

On Sun, 20 Nov 2005 23:00:22 -0400, Terry Spragg wrote:

Brian Whatcott wrote:
All you need is an exhalation valve at the mask, and an iron lung to
enable you to suck air below about 4 feet. Try it, just suck in
through the mouth using a harden hose and exhale through your nose.
Good luck.

Good Luck indeed, because if you go too far you are liable to have your
lungs being sucked up the hose is what I heard (not sure how deep is too
deep, anybody?)

Or a powered snorkel pump on a float on the surface, know as a
hooka, and some dive weights.

that works, I've done that..

--
http://maps.google.com/maps?q=irelan...244,0.0822&t=k

keep in mind the weight of paint...you don't
want to "up set" the prop too much.....

"beaufortnc" wrote:

Hi,

I'm prepping the bottom of my sailboat for barrier coat then ablative
bottom paint.

I'm thinking, however, that it might be a good idea to paint the prop
with something like Trinidad instead of ablative. It seems to me that
the ablative won't last long on the prop.

What's the conventional wisdom here?

Bob has tried all the conventional wisdom things, and they don't work
unless you are using your boat on a regular basis. And if you are
using your boat on a regular basis, it probably doesn't matter what
you use.


grandma Rosalie