Advice? Need Opinions on Sump in a closet

I think you have the right idea with using a door that will allow good ventilation but that's also going to allow the noise of your skimmer/water movement through the sump out of the closet. What are you planning on doing electricity wise in the closet? Is there already outlets in there? Adding electricity to the ceiling for an exhaust fan would be the costly part, so if you're having power put in for the closet have the electrician add a run up for a fan. Depending on the size of the closet, I would recommend additional venting besides just the door change.

 

how big will the sump be?

 

I think you are on the right track. I would just cut a louvered vent in it. If it continues to get damp/moisture in closet than I would put a fan blowing out like you are thinking. Even a small silent computer fan would do wonders. I used to use them in my canopies to remove moisture out of them.

 

That's a good idea and should do the job. You could go as far as wiring the fan to a humidistat too so it didn't run all the time, just when moisture levels reached your set point.

 

Almost every home has electric in the ceiling. This would likely cost very little to had a ceiling socket or to add an exhaust fan. You could add an air exchange into the wall that would cost a little more. However the air exchange would only vent closet wall to an adjacent room. I would start with painting the closet with a bathroom style paint. Semi gloss or Gloss. This paint is design to withstand humidity. There is a key here, don't allow humidity to get between the walls. The back side of drywall is most prone to getting mold.

*Do it yourself air exchange ~ Take two pipes (Size of your choice) drill wall, vent each room together threw wall and seal/caulk to prevent vapor exposure to inner walls. Add a fan to each pipe individually. One blowing air out and the second in reverse bringing air in. Place vent cover over pipe.

You can find all the parts at a local home depot, menards or lowes. The flex tubing they use for home HVAC systems work great. I went as far as putting the fans inside the flex hose and then putting a fresh air vent cover over the tubing/hole.

Could go as cheap as buying 1 square ac duct panel that goes between walls and vent the two rooms that way. If your going the duct route, make sure to mount this 3-4 inches from the ceiling.