manual bilge pump winterizing

Jul 8, 2011
49
Catalina 30Mk III Oyster Bay
is it necessary to get antifreeze into a manual bilge pump to winterize it? It takes a lot of antifreeze in the bilge to get it up and into the manual bilge pump. Auto bilge pump does get antifreeze pumped thru it to winterize. Thanks!
 
Dec 15, 2009
25
Hunter 30 USA
On mine the intake to the manual bilge pump is a hose that I can dunk into a jug of antifreeze. Can you attach a hose to your intake tube?
 
Feb 10, 2004
4,234
Hunter 40.5 Warwick, RI
In 17 years I have never put antifreeze in either the electric or manual bilge pump. It is my belief that the pumps drain back into the bilge. I will allow that there could be a low point somewhere, but I have never experienced a problem. YMMV.
 
Sep 23, 2009
1,477
O'Day 34-At Last Rock Hall, Md
Never seen in mentioned in any of the reading I've done, never seen it mentioned in the installation insturctions and never did it.
 

Rick I

.
Jan 6, 2007
414
CS36Merlin and Beneteau 393 - Toronto
In 17 years I have never put antifreeze in either the electric or manual bilge pump. It is my belief that the pumps drain back into the bilge. I will allow that there could be a low point somewhere, but I have never experienced a problem. YMMV.

Same here in 30 years! And it does freeze hard in Toronto.