I am thinking of putting in a recirculation side to my homemade ro. If installing the needle valve on the concentrate side. Where do I plumb the lower end or where does it feed into?
Right before the sap enters the membrane on the bottom side?
I am thinking of putting in a recirculation side to my homemade ro. If installing the needle valve on the concentrate side. Where do I plumb the lower end or where does it feed into?
Right before the sap enters the membrane on the bottom side?
Last edited by lastwoodsman; 04-05-2020 at 11:55 AM.
Scarlet Jewell Sugar Shack LLC
Sandstone, MN 55072
16 x 24 sugar shack
crescendo auto drawoff,
Home built ro with a Dow xle 4040 membrane.
1 1/2 hp motor on 220 drawing 8 amps
Gravity feed
300 taps on vacuum
2 x 6 Smokey Lake Corsair arch with blower and pans and preheater
1529 Massey Ferguson, Yamaha Wolverine
https://www.facebook.com/ScarletJewellSugarShack
Instagram. Mapleshack
http://www.youtube.com/watch?v=AOnmFMBgU10
Put a tee right before your concentrate needle valve. Run the recirc to a separate needle valve. Then to a flow meter. Then to the intake of your High pressure pump.
600 taps on vacuum
Lapierre mechanical Releaser
CDL electric releaser
2.5 x 10 CDL Venturi ( new for the 2024 season )
Home made modulating auto draw off
Homemade RO 2 x 4" membranes
CDL 16 x 16 bottler
Wesfab 7" filter press
Delaval 73 vacuum pumps
12 hives of bees
Scarlet Jewell Sugar Shack LLC
Sandstone, MN 55072
16 x 24 sugar shack
crescendo auto drawoff,
Home built ro with a Dow xle 4040 membrane.
1 1/2 hp motor on 220 drawing 8 amps
Gravity feed
300 taps on vacuum
2 x 6 Smokey Lake Corsair arch with blower and pans and preheater
1529 Massey Ferguson, Yamaha Wolverine
https://www.facebook.com/ScarletJewellSugarShack
Instagram. Mapleshack
http://www.youtube.com/watch?v=AOnmFMBgU10
A separate flow meter. A flow meter on recirc line is not necessary. But it’s nice to have. Your concentrate flow meter is for concentrate out. Meaning concentrate being sent to head tank to boil.
600 taps on vacuum
Lapierre mechanical Releaser
CDL electric releaser
2.5 x 10 CDL Venturi ( new for the 2024 season )
Home made modulating auto draw off
Homemade RO 2 x 4" membranes
CDL 16 x 16 bottler
Wesfab 7" filter press
Delaval 73 vacuum pumps
12 hives of bees
What is the advantage to installing a needle valve for recirculation verse just redirecting the concentrate back to the sap tank and letting it recirculate till you get it to the concentration level you want then sending it to your head tank?
This method works as well. I’ve used it before to achieve higher concentration. But it takes a long time. You are constantly adding concentrated sap to fresh sap. Then sending it through RO again.
I just find that with a recirc line I get better results. I run my recirc at 5gpm on my RO. And .75 gpm of concentrate.
This gets me boiling 30 minutes after I start RO and have enough in the head tank to fire up. By the time I’m boiling I have 40 gallons on head tank and it stays that level till RO shuts off.
The recircung back to sap tank takes hours untill you have an even concentration.
600 taps on vacuum
Lapierre mechanical Releaser
CDL electric releaser
2.5 x 10 CDL Venturi ( new for the 2024 season )
Home made modulating auto draw off
Homemade RO 2 x 4" membranes
CDL 16 x 16 bottler
Wesfab 7" filter press
Delaval 73 vacuum pumps
12 hives of bees
I experience as well.
Scarlet Jewell Sugar Shack LLC
Sandstone, MN 55072
16 x 24 sugar shack
crescendo auto drawoff,
Home built ro with a Dow xle 4040 membrane.
1 1/2 hp motor on 220 drawing 8 amps
Gravity feed
300 taps on vacuum
2 x 6 Smokey Lake Corsair arch with blower and pans and preheater
1529 Massey Ferguson, Yamaha Wolverine
https://www.facebook.com/ScarletJewellSugarShack
Instagram. Mapleshack
http://www.youtube.com/watch?v=AOnmFMBgU10
Last edited by lastwoodsman; 04-05-2020 at 11:59 AM.
Scarlet Jewell Sugar Shack LLC
Sandstone, MN 55072
16 x 24 sugar shack
crescendo auto drawoff,
Home built ro with a Dow xle 4040 membrane.
1 1/2 hp motor on 220 drawing 8 amps
Gravity feed
300 taps on vacuum
2 x 6 Smokey Lake Corsair arch with blower and pans and preheater
1529 Massey Ferguson, Yamaha Wolverine
https://www.facebook.com/ScarletJewellSugarShack
Instagram. Mapleshack
http://www.youtube.com/watch?v=AOnmFMBgU10
Scarlet Jewell Sugar Shack LLC
Sandstone, MN 55072
16 x 24 sugar shack
crescendo auto drawoff,
Home built ro with a Dow xle 4040 membrane.
1 1/2 hp motor on 220 drawing 8 amps
Gravity feed
300 taps on vacuum
2 x 6 Smokey Lake Corsair arch with blower and pans and preheater
1529 Massey Ferguson, Yamaha Wolverine
https://www.facebook.com/ScarletJewellSugarShack
Instagram. Mapleshack
http://www.youtube.com/watch?v=AOnmFMBgU10
Scarlet Jewell Sugar Shack LLC
Sandstone, MN 55072
16 x 24 sugar shack
crescendo auto drawoff,
Home built ro with a Dow xle 4040 membrane.
1 1/2 hp motor on 220 drawing 8 amps
Gravity feed
300 taps on vacuum
2 x 6 Smokey Lake Corsair arch with blower and pans and preheater
1529 Massey Ferguson, Yamaha Wolverine
https://www.facebook.com/ScarletJewellSugarShack
Instagram. Mapleshack
http://www.youtube.com/watch?v=AOnmFMBgU10