sihi 3708 cooling line setup

[clafarr]

i am "modernizing" vacuum pump this year from an alamo oil cooled pump ot a liquid cooled pump. I would like to run a closed loop circuit on this new pump. Anyone with a similiar set up?

[sugarstone]

check out the thread "Water cooled Vac questions". Some options there for you. I'am doing the same thing btw but with a SIHI 40412.
I used a barrel last year but with no loop from a stream. Went through alot of water. Probably running some kind of loop from a nearby stream for this year.

[sugarmountain]

hey sugarstone, this is off the thread but what kind of pump are you using to move sap over 2000 ft.?

[sugarstone]

hey sugarstone, this is off the thread but what kind of pump are you using to move sap over 2000 ft.?

sorry, didnt' see this post till now.

We have a Pompco S-600 (Piston Pump) on generator (6000watts). Tank at the pumphouse is 1000gal and hooked up with 1.25in line 2400-2500ft here to the shanty. Vertical difference is probably 20ft...shanty higher.
Doesn't take to long for the sap to get hear either...5mins or something when some sap still in the line.

[clafarr]

check out the thread "Water cooled Vac questions". Some options there for you. I'am doing the same thing btw but with a SIHI 40412.
I used a barrel last year but with no loop from a stream. Went through alot of water. Probably running some kind of loop from a nearby stream for this year.

thinking about using a 55 gal. barrel as a reservoir filled with antifreeze closed looped with copper tube in a nearby ditch. This tube would hook up to the 1/4 inch inlet on the inlet flange. exhaust would go into barrel to complete cycle.

[sugarstone]

thinking about using a 55 gal. barrel as a reservoir filled with antifreeze closed looped with copper tube in a nearby ditch. This tube would hook up to the 1/4 inch inlet on the inlet flange. exhaust would go into barrel to complete cycle.

As you may know, the exhaust barrel will need to be vented. I layed my barrel on its side and drilled holes in it for steam to escape. Sure pumped out of there alot.
I have a stream beside the pumphouse so I'am going to run a closed system too. Not sure if this is enough to keep the pump cool. May plumb a second barrel with an overflow and bring the stream to the pump.
I want to stick with antifreeze though for early season.

[Dave Y]

Clafarr
I am using a simalar system. I have a cage tank for liquid resevior. I also am running a loop through a spring about 80 ft away. I hope this keeps it cool. Last year I had my cooling loop on the ground and the pump got warm. so I hope this works better.I aslo have added a second cage tank. The more liqud you can cycle the longer it takes to get warm.

[sugarstone]

Clafarr
I am using a simalar system. I have a cage tank for liquid resevior. I also am running a loop through a spring about 80 ft away. I hope this keeps it cool. Last year I had my cooling loop on the ground and the pump got warm. so I hope this works better.I aslo have added a second cage tank. The more liqud you can cycle the longer it takes to get warm.

...you are planning the 80ft loop for this year? What size of pipe are you running your cooling line that distance? Any issues with vertical differences?
Do you think there will be any issues with that distance? would be awesome if it worked. We usually get some very cold nights during the early season so I'd like to have two dif cooling systems.

[sapman]

Dave, so are you running anti-freeze in your system? Last year I had about 150' of 1" black pipe on ground, and another 120' in the swamp. Melted through the ice in a couple days, but never had any issues with getting too warm.
I'm sick of rolling all that pipe up, so this year I'm going to try just a little pipe in the water running to a radiator and back.

[WMF]

If you guys use antifreeze make sure to use Propylene glycol and not Ethylene glycol or automotive antifreeze.

Propylene glycol is not lethal if ingested. It costs just a little more money and is readily available at dairy equipment suppliers. It can be diluted at least 50%and still provide freeze protection.

Murphy is always poised and ready to strike and using car antifreeze is just asking for it.

[clafarr]

...you are planning the 80ft loop for this year? What size of pipe are you running your cooling line that distance? Any issues with vertical differences?
Do you think there will be any issues with that distance? would be awesome if it worked. We usually get some very cold nights during the early season so I'd like to have two dif cooling systems.

3/8 pipe connected to 50' of copper tubeing of the same size submerged in the brook. brook is about 5 feet lower than the pump. on paper it should work.

[hogisland42]

I am not sure that will work. I would dig a hole in the ditch so you always have a pool when the ditch level drops.

[PATheron]

Ive kind of struggled the last three years with this. This is what Ive found to work the best for me. I have a tote and I hook the coolent up to the vac pump. Fill it whatever highth you want. Then I have a little sump pump hooked to one inch line that runs out on the ground and actually through a little pond and right back in to the tote. So you always have water for the pump even if the circulation line wasnt working. It always works though. I just leave that little sump pump on all the time. It works way better than when I just ran line out on the ground between the pump and the tank. Thats how I do it and it works real good for me.

[danno]

PA - you have the sump pump in the tote? And then an overflow line on the tote?

Jerry was telling me how he has a second hose from the a creek directly into the vac pump and does not need a water/sump pump. The vac from the vac pump pulls the water out of the creek and into the pump - thus no use of water pump or sump pump -thought this was interesting.