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Old January 11th, 2012, 08:42 AM
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Default Evaporator Feed Line

I'm wondering what size line to use to add sap to the evaporator when it's needed. My plan is to use 1/4" with an Asco valve to open and close the line. This allows me to use a standard light switch to add sap & shut it off. This will be a gravity fed system.
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Last edited by 1badsapper; January 11th, 2012 at 08:54 AM. Reason: add info.
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Old January 11th, 2012, 08:56 AM
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Badsapper

I used a homemade batch pan for many years, I used a 3/8" line to feed my pan with a ball valve, I could control the feed with the ball valve. It worked just fine for all them years. The problem I see with the Asco valve is that if the power goes off or it sticks, and I have seen them stick closed, you will have no sap flowing, not good If you want to use the Asco valve, you should install a by pass with a ball valve just in case. Hope this helps!
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Old January 11th, 2012, 09:03 AM
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Will the valve be in the steam?? Dont forget you GFCI Your starting to over think this sport just like I do every day. Alway go bigger and throttle it down with a valve. You will always use the parts later when you grow.
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Old January 11th, 2012, 09:06 AM
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Have a question for Your question. Do You use a float valve to maintain a level in Your evaporator or just manually add sap? My line from feed tank to evaporator is clear plastic 1/2" ID and have a small plastic valve in the end - which I manually control sap flow with from the feed tank. I only have a 2'x5' evaporator and - so far - this works for me. Naturally a float valve would be much better. Do to the heat consideration I hang line from hood or double clamp to 1st sap pan so I don't melt the plastic. Is Your electric switch so you can operate from a remote location? ---Mike---
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Old January 11th, 2012, 09:13 AM
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My evap has a float box and float. The connection to the float box is reduced to a piece of 1/2" copper pipe. I am getting some clear pex tubing to run from my feed tank to the float box. it was originally unsed with a length of garden house from the guy I bought it from.
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Old January 11th, 2012, 12:58 PM
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My feedline in 1 1/4. If I need to flood the pans quick this pipe size holds enough volume to do so.
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Old January 11th, 2012, 01:32 PM
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I'm with 3rdgen - our feed line is 1.5". If you need sap in a hurry to avoid burning a pan it's worth the extra expense for the bigger valves and fittings. I realize smaller backyard evaporators don't need a line this big but I agree with oversizing it to be safe.

One day I was having a brain cramp and repeatedly adjusted the float valve the wrong way, wondering why the sap level in the flue pan wasn't coming up. Next thing you know I could see the flues through the bubbles and the lightbulb went on! I managed to slam my hand down on the float and quickly flooded the flues with enough sap to save the pan. I was likely less than a minute from ruining it but the large feed line probably helped save my bacon!
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Old January 11th, 2012, 01:58 PM
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Quote:
Originally Posted by Ausable View Post
Have a question for Your question. Do You use a float valve to maintain a level in Your evaporator or just manually add sap? My line from feed tank to evaporator is clear plastic 1/2" ID and have a small plastic valve in the end - which I manually control sap flow with from the feed tank. I only have a 2'x5' evaporator and - so far - this works for me. Naturally a float valve would be much better. Do to the heat consideration I hang line from hood or double clamp to 1st sap pan so I don't melt the plastic. Is Your electric switch so you can operate from a remote location? ---Mike---
I'm using a 2x4 pan, I just thought it would be a neat way to do it. I think I will stick to a manual set up. Eliminate the possibility of failure.
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http://shorthairsshorttales.blogspot.com/
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Old January 11th, 2012, 02:00 PM
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Quote:
Originally Posted by Haynes Forest Products View Post
Will the valve be in the steam?? Dont forget you GFCI Your starting to over think this sport just like I do every day. Alway go bigger and throttle it down with a valve. You will always use the parts later when you grow.
Ya, you're right Haynse, next thing you know I will have a PLC hooked up so every thing can fail at once.
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Made with care by us & 2 German Shorthairs
And a little "Moonshine"
2x4 Smokey Lake Pan w/ Dividers
Masonry Arch- My Design
We carry lotsa pails
We cook lotsa sap
We have lotsa fun
http://shorthairsshorttales.blogspot.com/
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Old January 11th, 2012, 02:01 PM
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Quote:
Originally Posted by TLMaple View Post
Badsapper

I used a homemade batch pan for many years, I used a 3/8" line to feed my pan with a ball valve, I could control the feed with the ball valve. It worked just fine for all them years. The problem I see with the Asco valve is that if the power goes off or it sticks, and I have seen them stick closed, you will have no sap flowing, not good If you want to use the Asco valve, you should install a by pass with a ball valve just in case. Hope this helps!
Good point.
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Made with care by us & 2 German Shorthairs
And a little "Moonshine"
2x4 Smokey Lake Pan w/ Dividers
Masonry Arch- My Design
We carry lotsa pails
We cook lotsa sap
We have lotsa fun
http://shorthairsshorttales.blogspot.com/
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