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3\4" feed line, 1\2" recuirc. When I get to 1.5 or 2 gpm on the recuirc it starts to up the feed pressure.

The flow meter doesn't have a check valve but it only reads one flow direction, its flowing correctly.

I've got a home built unit with a procon 330 and 3 filmtec 4040's in series. Its been a great unit for concentrating my 1% birch sap to about 5-6%. I added a recuirc loop this year to try to help...

I'm pretty sure you wont be able to hit 200psi with that motor. But maybe. As for tubing i used the clear PVC with braided nylon in it, rated to 250psi i believe. Its cheap and available. Then some...

If you want bigger than 3/4 Hp you gotta go 56c bolt on with love joy couple instead of the clamp on

I' tried a 330 procon with a 1 Hp motor. Had to switch to a 1.5hp. Only could run around 150 psi with the 1 Hp which worked fine for me at the time with two membranes in series, but if you want to...

Be sure to have the plumbing option to switch from series while concentrating to parallel while flushing and cleaning. So your not cleaning one membrane into the other.

It is a 1750 rpm an yeah I was guessing on the bushes. Not my area of expertise. Its a weird one. I'll investigate more after the season. For now its doing all I could have hoped for at 150 psi....

Ha! Got the new pump. Still the same. So I borrowed a generator that has 230 and wired it to that and the performance increased. So its an issue with the motor. Is not starved for voltage, it just...

I've been running it and it still only makes 175psi tops. But I've been running it at 150 pi and pulling between 90 and 120gph of water out of my 1% sap. Recirculating it to around 4%· Its incredible...

So normal running sound should have no tick?

Its deffinety not that bad but it does have a slight tick. Anyone ever get a bad pump off the shelf? Wonder if it'll run for a while or do they seem to get worst and totally fail?

There is deffinety a rattle to the pump, not bad but a uniform clicking as it runs, not sure what it is suppose to sound like. Its brand new

Can figure pics out, its a 1.25" feed line camlocked to a flotech 1/2 Hp. Then a short run of 1" camlocked to the sap pre filter then fixed 3/4 to the Hp pump. When its at idle with Hp pump running...

Yeah testing with filter. Getting air must be from somewhere. I've double checked all fittings but can't find where its coming from. Maybe the feed pump. It seems to have air in the line if I just...

Nope. Won't get over 170. It seems maybe the pump Isn't functioning properly, no adjustment. its new but all systems check out just won't make more pressure. My sap is .8% so I'd be happy with...

Tried it with water again here are my flow rates.
Pressure.________Perm gpm._______ Conc gpm
40._____________ .2___________________ 5
75. ____________ 1.___________________ 3.75
...

So your saying without a recirc line I wouldn't be able to make pressure? Wouldn't a recirc lower the pressure if open? Low voltage would damage the motor but I don't see how it could damage the...

I have a feeling it may be a voltage issue. I'm off the grid running a 4k watt generator that's a pretty long run away. 150 ft of 10 gage with about a 28 amp draw when everything is at Fl amps....

Yeah wasnt sure if running strait water would effect pressure that much but I guess it probably does eh?

I tested my ro today and seemed to have a pressure issue. Its got two 4040s. With a 330 procon on a 1 horse. I was using water and wanted to bring it up to pressure momentarily to do a leak check. I...

There's a lot of great info on this thread, just thought I'd weigh in on the topic. I tap around 1000 birch in Alaska and have been running my business, Bridge creek birch syrup for 6 years now. I...

Id like to use Pex but was concerned with the specs. 160 psi at 74° . I'm sure that's quite conservative and im guessing at 38°the max pressure would be substantial greater. maybe ill give it a go...

Wondering if anyone has used braided nylon PVC tubing and brass fittings with hose clamps for high pressure lines on an RO? 1/2" is rated to 200 psi working pressure. I'm trying to figure out an...

Theres a few pictures of the bags on this website. You can get the idea. Only have had a few bags out of thousands actually rip out and fall off the tree. They are tough, I swap out the ten percent...