r/OffGrid 3d ago

Water pump off grid

Looking for recommendations, I am putting 2 inc totes underground due to extreme Texas heats to keep the water cool it’s a temporary while my water well gets done, what pump do yall recommend ?

40 Upvotes

31 comments sorted by

14

u/Normal-Special-8694 3d ago

I run my well into a 500 gallon underground cistern, I had a jet pump coming from the cistern for about a year and then I had a situation where my line into the house froze so I had to bypass it with a shurflo industrial diaphragm pump, and it has been doing great chugging away for like 6 years now. It uses a lot less power, and it’s a lot quieter. I still use the jet pump for irrigation and an emergency fire sprinkler system but when this shurflo dies I’m replacing it with another one.

8

u/Moist-Ant6720 3d ago

Like this one? And if so do you use a pressure tank or anything like that or just the pump itself

7

u/Normal-Special-8694 3d ago

The pressure is adjustable, I keep it at like 37 psi. I live alone so I don’t ever really have multiple faucets going at the same time but I can shower while the washer is running and it’s fine.

6

u/Normal-Special-8694 3d ago

Exactly that one, into a 35 gallon pressure tank

5

u/Moist-Ant6720 3d ago

Man, you have no idea how thankful I am for your response I was so stressed on what route to take I had seen that the harbor freight ones are obnoxiously loud lol, I am going the same route as you thank you once again 🙏🏻👍🏻👍🏻

4

u/Normal-Special-8694 3d ago

Good luck! You won’t regret it, those things are tanks. It’ll self prime, but I only did that once and it got warmer than I liked so definitely put in a way to fill the line between the tank and the pump with water, it does not have a priming port built into it

3

u/MFGibby 2d ago

I've used the DC versions of this pump for a decade to supply water to my offgrid house. These are bomber but the cheaper Seaflow versions are almost as durable for light duty

3

u/Normal-Special-8694 2d ago

I was purchasing a backup recently to keep on hand and I was looking at the DC ones, my battery bank runs 72v so I decided it wasn’t worth adding a step down transformer for whatever bit of savings I’d get, but its cool that they have basically their entire line available in both

1

u/sojosoj 2d ago

(New here) what type of cistern do you use (plastic or concrete)? Does it stay “clean” or do you do some type of maintenance? How deep underground is it?

2

u/Normal-Special-8694 2d ago

It’s a poly tank, the top of it is about 2 feet underground which isn’t really deep enough, ice will still form but I live on a rocky hillside and that was as deep as I could get it. It stays pretty clean since it doesn’t have any light exposure, I shock it with chlorine once a year or so whenever I have a concrete project or something that uses a lot of water and gives me a chance to fully cycle the water through it. I had initially set it up with a float switch on a valve coming from the well so it was always full, and that did get a little funky since it was essentially stagnant water. Now I have the well top it off only when it hits 50% and that hasn’t happened again.

2

u/Moist-Ant6720 1d ago

Good morning ! I bought the pump yesterday and installed, man I was blown away how great the water pressure is with out the pressure tank yet

It like being connected to city water!!!! Thank again !🙏🏻👍🏻🙂

2

u/Normal-Special-8694 1d ago

and they work fine without the pressure tank, they're installed in many RV's without them, but you'll have more consistent pressure, less noise and a longer lifespan if you use one

1

u/Normal-Special-8694 1d ago

glad it worked out!

8

u/Dadbod2343 2d ago

The Drummond one with the tank attached has worked well for me for several years.  

2

u/Spencetron 2d ago

Can confirm, I have one of these as well and it just won't quit.

2

u/Thubabri 2d ago

Me also. Approaching year 5 and still working good. Use mine to pump pond water for irrigation.

2

u/roofrunn3r 2d ago

Same. Have a Similar setup to op too

4

u/Longjumping-Cash3080 3d ago

I'm leaning towards the Grundfos scala2 in the near future for my off grid place

5

u/ol-gormsby 3d ago

Be very cautious with the Grundfos. The guy who did my place - an industrial plumber, not your usual domestic guy - recommended a Grundfos - the exact model to get to meet my needs - a CMBE 5-62.

Turns out it's not the best pump for my needs. It needed to pump from storage to the header tank, and to power the fire suppression sprinklers on the roof, and it met all the head, pressure, and flow requirements. It was fine for almost 2 years and then started making screeching noises. When I described it to a Grundfos dealer, he said that was the symptom of a flogged-out impeller, and they were starting to see that more and more in that range of Grundfos pumps. $500 for a "wet end" kit - impeller, seals, etc. But it will flog out again, so I'm looking for a better pump.

It only got used about 30-45 minutes a week. Doesn't mean the Scala range isn't any good but I expect better for AUD$3000.

1

u/Longjumping-Cash3080 3d ago

Ooofff, thanks for that!

3

u/jakewins 3d ago

Three things I’d look for if I bought a pump again:

  • 2-phase helped reduce the load on my PV inverter vs 1-phase, would pick that again
  • We bought cast iron, but we treat the water cistern ahead of the pump with chlorine and I think that’s the reason there’s a ton of corrosion just a few years in, would check for chlorine resistance
  • I would kill for a self-priming pump, we have to drain the system when there’s a risk of frost, and it’s a pain to re-prime it down in the crawl space 

These are probably very specific to our setup though (intermittent use cabin, off grid solar, rainwater cistern)

3

u/MrMcFisticuffs 3d ago

It's probably overkill but the Gould J5S has been my lake intake pump for over 15 years. It's pumped water, air, and gravel without complaint.

2

u/fwinzor 2d ago

I havent set up my well system yet but i do work in the plumbing industry. The Gould J5S is the single most popular jet pump in the industry among plumbers for a reason. Fantastic pump

3

u/PumpNPumpAccessories 2d ago

The Drummond 1HP without the tank is fairly stout. I have one running my irrigation. 

The Dab EasyBox Mini 3 is a great pump for this setup. Very efficient, variable speed like the Grundfos booster pumps, and lots of great features on the display and in the app (gallons consumed, power consumed, etc.). 

2

u/ou81aswell71 2d ago

Not to be a naysayer, but be careful that you don’t leave them empty if you get a lot of rain. I’ve read that a cistern will float out of the ground in heavy ground soaking rain.

2

u/Moist-Ant6720 2d ago

Thanks for the tip !

2

u/777MonkeyNuts 2d ago

Getting ready to start my off grid journey. Saving this post for later. Thanks!

1

u/Moist-Ant6720 1d ago

Use this one I bought it yesterday and it’s like being connected to city water the pressure is strong no fluttering or any air in the lines

2

u/offthewallness 2d ago

I used the pump in your second picture for a couple years on my off grid property.

We had a 2500 gallon water tank, I built a small enclosure to the side of it for the pump, I also added a second, larger, residential pressure tank.

I also added tee’s, quick fittings and valves to my setup so the pump could fill my water tank. I’d haul water in, flip my valves around and the pump would empty the water tote on my trailer into my big tank. I’d disconnect, flip the valves around again and it’d be back in service.

1

u/mega-husky 3d ago

I have a Seaflo 55 series. Good unit, great when you factor in the easier cost.

In the future I may get Grundfoss Scala 2

1

u/ol-gormsby 3d ago

See my response to u/Longjumping-Cash3080 below.