[C320-list] Forespar thru-hull

[Chris Nichols]

Funny thought perhaps but is it the same stiffness both opening and closing?
When closing the valve there is likely little or no pressure differential either side of the ball.
When opening, sometime later, there could be a difference and the ball could be being forced into the housing by outside pressure which could be making it stiffer. This would only happen if the water on the pipe side within the boat were to be drained to below the waterline when the valve was closed.

Chris

Sent from my iPad

> On 21 Sep 2015, at 19:56, Warren Updike <wupdike at hotmail.com> wrote:
> 
> My raw water thru-hull is very hard to operate, besides being located under
> the aft berth. This past spring, I removed the top to access the ball and
> thoroughly lubricated it. After reassembling, it worked easily out of the
> water. Once in the water, it became hard to operate once again as though I
> hadn't bothered to lube it. I've noticed this with the other valves as well.
> Out of the water: no problem. In the water: stiff to operate. 
> 
> Anyone have ideas or suggestions?
> 
> 
> 
> Warren and Pattie Updike
> 
> 1994 C320 "Warr de Mar" #62
> 
> 
>