Continuos Duty Bilge Blowers
 

I'm tired of replacing my bilge blowers, as these Atwood Continuous
Duty (continuous duty in a pigs eye), inline blowers only last one
season before they start squealing.

I probably use my blowers more than the average Joe, so I need a
blower that offers real, and reliable continuous duty.

I looked at this one, and it does look much more durable than the
little plastic inline blowers, but the motor doesn't look like it
would tolerate a salt environment, though I could be wrong.

http://www.greatoutdoors.com/go/prod...er/amback.com/


Any other recommendations?

Continuos Duty Bilge Blowers
 

That looks like a nice unit. Much better than the cheap Attwood. I have a
similar one in my '76 trihull, that sees nothing but salt water. 32 years
old and it still works fine. Pay attention to the motor housing...that is
what counts. The bracket you have pictured looks galvanized, but it can be
replaced if needed.

Take a look at this link...there are several other models to choose from.

http://www.cnejs-hunting-fishing.com...age_Number=355


Jim Rojas

wrote in message
...
I'm tired of replacing my bilge blowers, as these Atwood Continuous
Duty (continuous duty in a pigs eye), inline blowers only last one
season before they start squealing.

I probably use my blowers more than the average Joe, so I need a
blower that offers real, and reliable continuous duty.

I looked at this one, and it does look much more durable than the
little plastic inline blowers, but the motor doesn't look like it
would tolerate a salt environment, though I could be wrong.

http://www.greatoutdoors.com/go/prod...er/amback.com/


Any other recommendations?

Continuos Duty Bilge Blowers
 

wrote in message
...

I probably use my blowers more than the average Joe, so I need a
blower that offers real, and reliable continuous duty.


There is a basic fundamental problem with any DC motor being considered
"continuous duty": The typical brush type motor will wear out the brushes!

A commutated motor is hard on brushes. The slip ring brushes that are used
on AC motors can last a long, long time, but the arcing and gaps associated
with a commutator cause the brushes to wear. On a motor that is intended to
have a long service life they will put in very long brushes and/or make them
easy to change. The typical "cheap" DC motor, however, when the brushes wear
out you throw the motor away.

If you really wanted to have a long life, continuous duty blower then what
you should do is get a blower assembly, with good bearings that you can
grease from time to time, and couple it to a good motor. Ideally you would
get a "brushless DC" motor so that you wouldn't have these issues.

Unfortunately, the blower really needs to be a "marine" rated item so you
have the additional problem of finding a brushless DC motor that is also
marine rated.

Rod

Continuos Duty Bilge Blowers
 

Hey Jim... I hate to tell you but your 31 year old boat is only 28... Well
if it is a '76 as you said!!

"Jim Rojas" wrote in message
...
That looks like a nice unit. Much better than the cheap Attwood. I have a
similar one in my '76 trihull, that sees nothing but salt water. 32 years
old and it still works fine. Pay attention to the motor housing...that is
what counts. The bracket you have pictured looks galvanized, but it can be
replaced if needed.

Take a look at this link...there are several other models to choose from.


http://www.cnejs-hunting-fishing.com...age_Number=355


Jim Rojas

wrote in message
...
I'm tired of replacing my bilge blowers, as these Atwood Continuous
Duty (continuous duty in a pigs eye), inline blowers only last one
season before they start squealing.

I probably use my blowers more than the average Joe, so I need a
blower that offers real, and reliable continuous duty.

I looked at this one, and it does look much more durable than the
little plastic inline blowers, but the motor doesn't look like it
would tolerate a salt environment, though I could be wrong.


http://www.greatoutdoors.com/go/prod...er/amback.com/


Any other recommendations?

Continuos Duty Bilge Blowers
 

Well you get the idea... :)

Jim Rojas

wrote in message
link.net...
Hey Jim... I hate to tell you but your 31 year old boat is only 28... Well
if it is a '76 as you said!!

"Jim Rojas" wrote in message
...
That looks like a nice unit. Much better than the cheap Attwood. I have
a
similar one in my '76 trihull, that sees nothing but salt water. 32
years
old and it still works fine. Pay attention to the motor housing...that
is
what counts. The bracket you have pictured looks galvanized, but it can
be
replaced if needed.

Take a look at this link...there are several other models to choose
from.



http://www.cnejs-hunting-fishing.com...age_Number=355


Jim Rojas

wrote in message
...
I'm tired of replacing my bilge blowers, as these Atwood Continuous
Duty (continuous duty in a pigs eye), inline blowers only last one
season before they start squealing.

I probably use my blowers more than the average Joe, so I need a
blower that offers real, and reliable continuous duty.

I looked at this one, and it does look much more durable than the
little plastic inline blowers, but the motor doesn't look like it
would tolerate a salt environment, though I could be wrong.


http://www.greatoutdoors.com/go/prod...er/amback.com/


Any other recommendations?

Continuos Duty Bilge Blowers
 

On Fri, 21 May 2004 15:24:02 GMT, wrote:
I looked at this one, and it does look much more durable than the
little plastic inline blowers, but the motor doesn't look like it
would tolerate a salt environment, though I could be wrong.

http://www.greatoutdoors.com/go/prod...er/amback.com/


Any other recommendations?

================================================== ========

The ITT/Jabsco blowers are OK. You should get at least 1,000+ hours
out of one with reasonable care and feeding.

Continuos Duty Bilge Blowers
 

wrote:
I'm tired of replacing my bilge blowers, as these Atwood Continuous
Duty (continuous duty in a pigs eye), inline blowers only last one
season before they start squealing.

I probably use my blowers more than the average Joe, so I need a
blower that offers real, and reliable continuous duty.

Why?? Fuel or gas leaks?? (hope not)

Once the motor is running at some revs it's sucking in more air than
any blower is likely to move; indeed leaving the blower on at cruise is
robbing the motor of free air supply or at least trying to.

Assuming your engine room is reasonably well sealed, that could be part
of the problem for the blowers??? struggling against the inrushing air
trying to feed the motor??



K


I looked at this one, and it does look much more durable than the
little plastic inline blowers, but the motor doesn't look like it
would tolerate a salt environment, though I could be wrong.

http://www.greatoutdoors.com/go/prod...er/amback.com/


Any other recommendations?

Continuos Duty Bilge Blowers
 

Subject: Continuos Duty Bilge Blowers
From: "K. Smith"


Not 100% true. I know of a number of installations that require a constant
blower to assure positive air pressure within the e/r to cover all engine
operating speeds.

Shen
Why?? Fuel or gas leaks?? (hope not)

Once the motor is running at some revs it's sucking in more air than
any blower is likely to move; indeed leaving the blower on at cruise is
robbing the motor of free air supply or at least trying to.

Assuming your engine room is reasonably well sealed, that could be part

of the problem for the blowers??? struggling against the inrushing air
trying to feed the motor??



K

Continuos Duty Bilge Blowers
 

On 23 May 2004 02:30:46 GMT, (Shen44) wrote:

Not 100% true. I know of a number of installations that require a constant
blower to assure positive air pressure within the e/r to cover all engine
operating speeds.

=============================

Also, at low speed, running the exhaust blower can help to keep engine
room temperatures under control on some boats.

Continuos Duty Bilge Blowers
 

Shen44 wrote:

Subject: Continuos Duty Bilge Blowers
From: "K. Smith"



Not 100% true. I know of a number of installations that require a constant
blower to assure positive air pressure within the e/r to cover all engine
operating speeds.

Shen

Why?? Fuel or gas leaks?? (hope not)

Once the motor is running at some revs it's sucking in more air than
any blower is likely to move; indeed leaving the blower on at cruise is
robbing the motor of free air supply or at least trying to.

Assuming your engine room is reasonably well sealed, that could be part


of the problem for the blowers??? struggling against the inrushing air
trying to feed the motor??



K





Ms. Smith's boating advice is, as has been demonstrated here several
dozen times, not very good.