To avoid these ads, REGISTER NOW!

Odd question about water surface tension-

MatBirch

Well-known member
Joined
Oct 10, 2013
Messages
419
Location
Filer, Idaho
I have a peculiar situation. I have an aluminum window frame which has weep holes across the bottom to drain any water that collects in the track. I happened to be standing under it, and noticed that it was full, yet wasn’t draining. The surface tension of the water was creating it’s own seal. If I touched it, it would drip a little and then reseal. The inside of the track is nice and clean, it's not debris that’s causing this.
Is there anything I can do to help this? I know of ways to break the surface tension of standing water, but is there anything I can use to pre-treat?
I’d like to not open the hole up any more.

Thanks
 
To avoid these ads, REGISTER NOW!

cmandp

Well-known member
Joined
Dec 22, 2011
Messages
1,288
Location
New Jersey
Without changing the geometry of the hole or slope leading up to it the only thing I can think of to do is maybe stick a wire in there, hanging down to see if the water's surface tension will work to pull itself along the wire and drain.

I'm guessing these weep holes are pretty narrow? Are they small holes or a slot?
 

Kevin54

MEMBER EMERITUS
Joined
Jan 12, 2005
Messages
29,341
Location
Urbana, Ohio
Anything will break the tension. Even a piece of very small wire bent to hang out of the hole, or take something like a small pick and push up on one side of the weep hole just to bend it up so slightly.. As long as you have an irregular surface, you won't have the water tension.
 
To avoid these ads, REGISTER NOW!

Coolabah

Well-known member
Joined
Jun 6, 2010
Messages
1,377
Location
2nd Floor, 3rd on the Right,Narooma, Australia
I have a peculiar situation. I have an aluminum window frame which has weep holes across the bottom to drain any water that collects in the track. I happened to be standing under it, and noticed that it was full, yet wasn’t draining. The surface tension of the water was creating it’s own seal. If I touched it, it would drip a little and then reseal. The inside of the track is nice and clean, it's not debris that’s causing this.
Is there anything I can do to help this? I know of ways to break the surface tension of standing water, but is there anything I can use to pre-treat?
I’d like to not open the hole up any more.

Thanks

It sounds like bad design to me. If it were me I would just bite the bullet and drill out the hole to what the manufacturer SHOULD have done in the first place, rather than spend the rest of my life messing with it !
Not what you wanted to hear, I know, but my honest 2cents worth ....
 

Shiftless

Well-known member
Joined
Mar 9, 2014
Messages
14,592
Location
East Bay SFO
It sounds like bad design to me. If it were me I would just bite the bullet and drill out the hole to what the manufacturer SHOULD have done in the first place, rather than spend the rest of my life messing with it !
Not what you wanted to hear, I know, but my honest 2cents worth ....

:+1: to that

Take a nice sharp 3/16 drill bit and enlarge those wimpy slots and see if you still have that problem. I bet you won’t.
 
To avoid these ads, REGISTER NOW!
Top Bottom