Duped by an Extractor

Scott B.

Magazine/Blog Author
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Recently in another thread, I mentioned the mind game that finish work can be. I walked myself right into a mind fork yesterday. I will preface by saying that I haven't slept in about 25 days, but I am working on 6 mahogany doors in the shop. Finish sanding and then brushing coats of Epifanes on all surfaces.

Our field crew is very busy, which means all the most popular prep tools are in the field working hard. So, I'm looking around the shop for some combo to set up to do my prep and in between coat sanding on these doors.

I find the CT36AC with the black hose, blast gate and cradle on top. A RTS400 with a dog eared base. And a 22 mm (yes, really) hose. Oh, and like one piece of 120 and piece of 180 granat for the RTS.

I hook up this odd mix of stuff. You all know how I love the RTS. And you probably know how I feel about mahogany.

I fire up the RTS, actually curious as heck to see how the 22mm will do on it, and having never done finish sanding using the AC for extraction.

It was a very odd experience. Followed by a very odd but methodical round of trouble shooting, which included breaking down the 36AC (about 30% full of straight up drywall dust), pulling the filter, cleaning everything, and reassembling.

Long story short, and it only took me about a half hour to come to this conclusion, the blast gate on the extractor had been closed the entire time.

Once that was solved, I can now report that a RTS/36AC and a 22 mm hose is quite a setup. The rest of the day was great.

Moral of the story: Dont get duped by the blast gate.
 
I have sanded quite a bit of drywall with my ac36, and I have the blast gate.  But I've never had to the use the blast gate.  The auto clean function works perfectly and I don't see loss off suction.  I think this may be due to the fact the Ultimate dust deputy takes in almost all the dust. 
 
Jaybolishes said:
I have sanded quite a bit of drywall with my ac36, and I have the blast gate.  But I've never had to the use the blast gate.  The auto clean function works perfectly and I don't see loss off suction.  I think this may be due to the fact the Ultimate dust deputy takes in almost all the dust. 

I'm sure that is the case. Just using the 36ac by itself I use the blastgate all of the time. I would say while sanding drywall I run a cycle about every 20 mins and I notice a big difference in suction. While removing textured surface every 10 mins or so!
 
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