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Got caught up in the season quickly and didn’t have a chance to add my recirc line until today. Will be anxious to try it next year. Thanks everyone!

I don’t know much about 5/16” vacuum systems but I don’t think that issue of changing slope at pump suction applies to 3/16” lines?

Is it easy to adjust the recirculated flow or does it need constant adjustment? Does a simple ball valve work or do you need to fine tuning of a needle valve?

Second year using a Shurflo 4008 pump to provide vacuum for my four 3/16” lines supporting 100 taps. Everything works fine 90% of the time until the pump loses vacuum. Sap fills the inlet line to the...

Thanks for the reply’s.

As I’m building my setup here I got another hairbrained idea. Anybody plumb the outlet of their Shurflo pump directly to the evaporator feed, no head tank? In my case 4 - 3/16” sap lines would feed a...

I’m good on power and battery charging.

I would only do this while I’m cooking. I’d pump to a separate storage tank while not cooking.

As I’m building my setup here I got another hairbrained idea. Anybody plumb the outlet of their Shurflo pump directly to the evaporator feed? In my case there would be a hose from the pump outlet to...

Thanks everyone. Looks like simple works for others. Will stick to my plan and see how it goes. Thanks too for figuring out shuffle just means auto correct changed Shurflo. Dang!

I’m curious if anyone else has tried this or knows why I shouldn’t try it. I’m planning to use a 4048 Shurflo pump next year to provide suction for Around 110 taps on 3/16” tubing. I plan to use a...

I did a quick check and had less than 3” wc on my 3/8” id nozzles. Inserted some 1/8” pipe with .269” id and had close to 8” wc. Will try that tomorrow on a cook and I think it may help. Also rigged...

Thanks for the reply Dave but I’ve already sized and installed the blower and was hoping to get some response to my new set of questions and observations from my most recent post.

Thought I’d give an update and ask a couple questions. Second cook with new blower today and very happy with results. First cook I had way too much AOF. Today I started cutting that back and was...

Well that was easy. Not! Four phone calls to four different Dayton Companies directed by four different recommendations and I never did get the Dayton Company that builds blowers. I ordered a Koala...

I’ve looked at both the Grainger and Dayton sites. They have a list of 30 specs that must include every size dimension for that blower, but neither site mentions cfm or output pressure. Guess I’ll...

The Maple research org web site lists a specific Grainger model. Grangers description of that model list no CFM and no pressure specs. It also costs $421 without a motor. I know the Koala 680 will...

I’m rebuilding my homemade evaporator this summer and am adding AOF/AUF. I’ve tried searching again and can’t find what size Koala blower people are using for a 2x6 evaporator. I thought it was a...

Thanks gentlemen. Looking to add on this fall and want to double check before starting.

Anyone have a good link to the UVM research paper on air over fire? I had it bookmarked but with the new website at UVM the link is no longer active. I’ve spent almost an hour looking thru the new...

Flow is uphill. I plan to always have sap flowing when the preheater is on the stack. Easily removed when no flow. Any suggestions for cleaning flux from the inside of the pipe?

I added 20' of 1/2" pipe not wrapped completely around the stack. I will be able to lift the preheater and remove it anytime I want. Can't wait to try it out. Thanks for all the advice, even those...

Never thought of melting the solder. When finishing a batch or final cook at the end of the season there would be times the pipe would have to be empty. Might have to rethink this.

I have a 2x6 homemade evaporator with a rectangular chimney that I would like to solder 3/4" copper pipe with elbows to wrap the pipe around the chimney for a preheater. Anyone else try this? Any...

I'm looking at different options for a homemade preheater. I know about wrapping copper tubing around a chimney. This won't work for me for a couple reasons. Instead I was thinking about running...