My HVAC system is around 15 years old and I have a washable air filter. The tech who looked at it last told me to clean the filter out and run water through it once a month.
He told me to let the filter dry for 3 hours before replacing it. I had a different tech tell me, however, to shake the water out of the filter and put it right back in.
So that leaves me with two questions.
Do I let the filter dry for 3 hours or shake it and put it back? Is it safe to let my HVAC run for 3 hours without a filter?
Thanks for all help in advance!