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Using CV spouts when tapping below the lateral is also helpful to prevent backflow when freeze happens.

There are multiple 8800 series pumps, with the 8852 having the highest flowrate. Which do you have?

An 8852 should run a single 500 gpd membrane just fine. What pressure are you running it at? ...

The membrane gpd rating indicates how much permeate it is able to remove at a given pressure and flowrate. The 150 gpd membrane will remove more permeate resulting in a slightly higher...

Are you adjusting the needle valve on your concentrate line to increase pressure?

Some basic things to check that I've seen before
(1) pre filter housing installed in correct flow direction...

Agreed - 8900 is the way to go, especially if you might ever add another membrane.

Not familiar with that pump, but those specs make me believe it's pretty undersized for running two 400 gpd membranes. 1 lpm nominal/open flow will reduce to pretty low flowrates at 100 psi. Do you...

Yeah 200 W might be fine, I think the price to go to 250W or 300W is minimal and opted to go higher since I didn't want to overload the power supply. I really like these waterproof ones: ...

I've done the pumping into a tank and using the same pump (with a valve manifold) to draw from that tank and push it uphill. I've done it 2 ways (1) completely isolating the vacuum lines and only...

Yep my original plan was to use a level controller for the 2nd pump (either a GRL8-02 which i used in my ROs or a Sump Pump level switch) but decided to try the series set up first. Worked great. ...

https://a.co/d/foRpj8R

I set up a shurflo and an aquatec in series with each other to pull vacuum and push the sap uphill over 200 feet with 40 - 50 ft elevation change. Worked great for the 28 trees I had on it and...

Or use an active carbon block filter to remove chlorine from city tap water. This is what I do for my yearly pre-season flush.
https://youtu.be/mP_ESUNqUg8

Yes - btw, Ohio state is doing a study this year on brix levels throughout the season.

Dilute food grade h2O2 to 3% using permeate. Fill lines, but do not leave in all summer. The oxygen released will make your fittings very brittle of exposed for extremely long periods of time. I...

I love the SL press. It's stainlesss and not aluminum, and not much different in price. I average around 28 gallons of syrup per year and batch sizes vary from 1 gallon to 3 gallons that I run...

Very welcome

Pulled all 112 taps today and cleaned my lines. I think I'll end up with about 1 quart of syrup per tap once I boil down all the sweet in my pan.

Just not worth waiting over a week for one night...

I am in SW PA about 2 hrs away and have had VERY low sugar content all season. Averaging slightly under 1%. Worst I've had here in 7 season.

I plan to wrap it all up by Sunday as well! Slightly down again this year - the weather just isn't cooperating.

That's really rough and I feel really bad for you ...has to be maddening!

Have you ever considered taking down your lines and putting them back up every year?

I do this, using a spool / yoke that I made out of 5 gallons buckets and PVC pipe. One spool per line. I...

Most likely will work, just not sure how long it'll run it for. They have max amps of 10, but probably run more around 3 amps (never measured it though). That's 8 hrs of run time max. You will get...

I really don't know without doing more research.

Volume changes with temperature. You would need to compensate for that as well as other considerations pointed out by others.

The advice here is solid, and i agree with suggestions to order a...

Shurflo pump has max of 10 amps. You want the power supply to be larger enough so that 80% of its wattage is not exceeded at peak load. So (12 v x 10 amp ) / 0.8 = 150 watt. I use a waterproof 200...