The warm moist air inside the vent tends to condense on the colder walls.
Are attic usually dry.
Make sure you also have an attachment that will connect the wet dry vac to the drain line.
At high temperatures like the ones you might find in your attic batteries can rapidly lose power or may even start leaking potentially setting you up for a chemical burn.
Inadequate ventilation attics must be vented to allow moist warm air to escape.
Though attics are typically hot and dry a leaky roof or pipe condensation or severe weather can cause water to enter your attic.
Clothes dryers venting air to the attic rather than outside.
Top causes of attic moisture.
An attachment with a 3 4 in 1 9 cm opening should work well.
Water in your attic can damage wood beams insulation and even.
Air conditioner condensate pan not draining.
Plus being up high with plenty of airflow can make the space inside a fairly dry environment such temperature fluctuations and aridness mean you should keep things like upholstered furniture delicate fabrics electronics and candles out of attics.
Buy or rent a wet dry vac with attachments if you don t have one.
To clear out your clog you can use a standard wet dry vac with a 10 12 us gal 38 45 l tank.