My water panel has a spray paint mark on one of the edges. Does this mark indicate the top or bottom of the panel?

Top. http://www.aprilaire.com/docs/default-source/product-owners-manuals/replacement-parts/aprilaire-water-panel-35-install.pdf?Status=Master&sfvrsn=4

is it not supposed to be just plane wire mesh? what is the white crust on them that looks the same as my last year salt deposited one?

mine does not have the same look as those I threw out..a tiny bit of a white sheen but not at all a crust..I can easily see thru the mesh.

I just installed this water panel in December and it's already clogged. Can I rinse/clean it out and reinstall?

I'm not sure about that, but the guy that installed our Aprilaire said if you have to replace the water panel more than once a season that you should look into a water softener (or if you have one already, run the softened water to the unit). I hope that helps!

ASIN	B0076OW80S
Brand	Aprilaire
Brand Name	Aprilaire
Capacity	18 G/day
Customer Reviews	4.8 out of 5 stars 17,585 Reviews
Filter Type	Wick
Item Height	10 Inches
Item Shape	Rectangular
Item Weight	794 g
Manufacturer	Aprilaire
Model Name	35 02
Model Number	35 02
Operation Mode	Evaporative
Other Special Features of the Product	Water Panel Evaporator, Fan-forced Evaporation
Power Source Type	Corded Electric
Room Type	Bedroom, Living Room, Office
Special Feature	Water Panel Evaporator, Fan-forced Evaporation
UPC	686720035029

Aprilaire Evaporative Humidifier, Whole House, 18 Gallons Per Day, Water Panel Evaporator, Fan-forced Evaporation

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