The gast rotary vain 0523 comes with a silencer/filter that screws into the air intake. Do you or should you run the system with this screwed in? I have had it in but noticed less air pressure at the diffusers so I took it off and the pressure went back up. I cleaned the filter but feel there is more pressure in the line when it is off. Any opinions?

David

The filter I used was from McMaster Carr...part number 4369K31. I tested the amp draw with and without the filter and it was 0.1 to 0.2 amps higher with the filter in place. That seemed reasonable to me so I accepted it as "Good Enough".

Here's the link...

https://www.mcmaster.com/#catalog/124/422/=1drnv09

I chose this filter because it was the same pipe size that the pump offers at the connection. McMaster has higher CFM rated filters, but you have to bell up to 1/2" pipe size and that seemed unreasonable.

BTW, the filter comes with an element included so don't buy two replacement elements thinking you'll use one and set one back as a spare. I now have two spares.