Re: [PSUBS-MAILIST]Seals (was Pressure compensation)

[Subscuba@aol.com]

In a message dated 8/15/00 4:38:43 PM Eastern Daylight Time, SFreihof@aol.com 
writes:

<< 
 Ken-
 
 How are you sealing your motor?  What depth have you had it to?  Any leakage 
 problems?  Tell me more....
 
 Thanks
 
 Stan >>

Steve and Stan,

I am using the Minn Kota without any modifications to the motor or seals. I 
use a small tank (30 Ft^3) with a Scuba regulator adjusted to give a slight 
positive pressure under normal conditions. This means the seals have to 
withstand about 1 to 2 psi positive which also implies if I get a leak air 
will leak out not water in. Pat (Capt. Nemo) probably knows more about this 
than me and I suspect more experience. The concept is simple as is the 
implementation.

Depth of operation is primarily limited by other considerations, since if you 
had enough air you could operate down to the Challenger deep off the 
Marianas, which is fairly deep.

If you want more information give me your phone numbers and I'll call you.

Best wishes,

Ken Martindale

PS Pat, 4 horsepower (746 watts)? We went through this before, I would like a 
4 HP motor.