Ac and salt creep

[buzzard one]

Just wondering if any one knows if a central air conditioning could be damage by salt creep. I'm setting up a knew 265 gal. tank, that will be close to a return duct, to my air conditioning. I am concerned about corrosion to the system. I really don't know if the water that evaporates has any corrosive properties to it, since it came from salt water. Greg

 

[createyourown]

i dont think salt can float but i could be wrong

 

[tmz]

I do get salt vapor in my basement and it coats and rusts metal if I'm not careful.

 

[tomasga]

I have had a PC in my fishroom behind a 110 gallon system for a few years and it has not rusted, the room is open over the 8' wall height to vaulted ceilings so that could be why

 

[buzzard one]

salt vapor

salt vapor

Any other opinions, or knowledge of this happening to central ac systems. I'm thinking I should move the return vent, to be on the safe side.

Greg

 

[TheH]

I don't understand the term salt-vapor. My understanding is that evaporated salt-water is pure water (i.e. distillation) and contains no salt.

 

[tmz]

Some salt will go airborne with droplets/mist of spray from surface agitation. When humidity is high in a closed room like my basement it will coat surfaces . I have a constant issue maintaining metal surfaces in my basement sump/frag tank room free of salt film and rust as well as in my home near the beach.
This is what I mean by salt vapor.

 

[nmbeg]

I have salt vapor all over my fish room, with rust everywhere, not to mention the power-strips which tend to trip.... especially when you are away for the weekend!

 

[wooden_reefer]

I don't think it is "salt vapor", as in sublimation.

It is either solid salt particles or salty mist that drift.

 

[luther1200]

I had a wieght bench in my fish tank rrom for a while. And it got rusted pretty bad in some dpots from the salty air in the room. The tank also happens to be right under the Ac return. I haven't noticed any affects on the AC from the tank though. But my tank is only a 65 not a 265, lol.

 

[JHemdal]

+1 on what tmz said, "salt mist" is a very real issue. While evaporate is just H2O, other mechanisms apparently get salt up into the air. The added problem is that this material is very hydroscopic, so when the humidity goes up, it starts tripping breakers, starting fires (happened to me) and rusting things.
The HVAC system at my facility was installed in 1989, and most of the ductwork is trashed through corrosion. When we replace it, I'm going to opt for those nifty nylon material distribution tubes, like those blow-up waving people they use to sell used cars.

Jay

 

[nmbeg]

<a href=showthread.php?s=&postid=15510946#post15510946 target=_blank>Originally posted</a> by wooden_reefer
I don't think it is "salt vapor", as in sublimation.

It is either solid salt particles or salty mist that drift.

agreed. that's what I meant.

 

[tmz]

<a href=showthread.php?s=&postid=15510946#post15510946 target=_blank>Originally posted</a> by wooden_reefer
I don't think it is "salt vapor", as in sublimation.

It is either solid salt particles or salty mist that drift.

Actually, I think its particles of sodium chloride that form condensation sites for water vapor which is present via relative humidity or evaporation. I think salt vapor is an apt term for it whatever the process that forms it.

 

[BenDaddy]

Has anyone rigged anything to combat the airborne salt? I'm thinking some sort of airfilter. Is there anything that attracts the salt more than a normal air filter.

I have an in-wall, and I see rust on most of my black metal piping and some of the HVAC system. It's not too bad yet, but I would like to mitigate as much as possible.

 

[tmz]

I use a dehumidifier which helps.