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Description
plant pots xl 8Pot XL SystemAutoPot XL Systems, 1 100 Pots, 6. 6 Gallon Happy Hydro 6. 6 gallons per pot, zero electricity, and every plant waters itself The AutoPot XL System uses gravity and the AQUAvalve5 to deliver water and nutrients from a single reservoir to 6. 6 gallon pots with no pumps, no timers, and no power. Each pot gets its own valve and tray, so every plant sets its own wet dry cycle independently. The round pot base rotates inside the tray, giving you full
6.6 gallons per pot, zero electricity, and every plant waters itself
The AutoPot XL System uses gravity and the AQUAvalve5 to deliver water and nutrients from a single reservoir to 6.6-gallon pots with no pumps, no timers, and no power. Each pot gets its own valve and tray, so every plant sets its own wet/dry cycle independently. The round pot base rotates inside the tray, giving you full access to the plant without disconnecting anything. Start with 1 pot and expand to 100 using the same reservoir and pipe run.
Plant-driven watering
No electricity required
Up to 50% water savings
1 to 100 pots, one reservoir
Gallery
See the XL system in action
Side by side
Hand watering vs. AutoPot XL
Hand watering
- Water every few days, manually, per pot
- Overwatering and underwatering depend on your schedule
- Runoff collects in saucers, needs draining
- Can't leave plants unattended for more than a few days
- Each pot gets different amounts depending on pour speed
- Scaling to more plants means more time hand watering
AutoPot XL System
- AQUAvalve5 fills tray to 1" and shuts off automatically
- Plants control their own wet/dry cycle through the valve
- Zero runoff, water goes up through the root zone and stays
- Leave for days or weeks, just keep the reservoir topped off
- Every pot gets the same delivery from the same reservoir
- Add pots with a tee connector, same pipe run, no extra work
What makes it different
Built around the AQUAvalve5
AQUAvalve5 with 5mm inlet 66% larger
The valve's dual-float mechanism fills each tray to exactly 1" of water, then closes. It only reopens after the plant has consumed the entire supply. The 5mm inlet is 66% larger than previous versions, reducing blockages and allowing liquid organic nutrients to flow through the system.
No electricity, no pumps, no timers
The entire system runs on gravity pressure from a reservoir raised at least 6" above the highest AQUAvalve5. No power outlet needed, no pump noise, and no single point of electrical failure.
Rotatable round pot base
The 6.6-gallon round pot sits inside a clam-shaped tray and spins freely. Rotate large plants to access every side for training, inspection, or defoliation without removing the pot from the system.
Expand from 1 pot to 100
Every system uses the same 3/8" pipe and tee connectors. Adding a pot means adding one XL expansion module and cutting in a tee. The reservoir feeds them all from a single line.
Works with any growing medium
Coco, perlite, soil blends, and clay pebbles all work. AutoPot recommends a 50/50 coco-perlite mix for best results. Heavier mixes benefit from adding an AirDome for extra root zone oxygen.
Up to 50% water and nutrient savings 50%
Bottom feeding means zero runoff. Water wicks upward through the medium and stays in the root zone until the plant uses it. Nothing drains out the bottom, nothing evaporates from the tray.
Specs
System details and dimensions
Pot Size
6.6 gallon (25L) round plastic
Valve
AQUAvalve5, 5mm inlet, 3/8" fittings
Pipe Size
3/8" main line, 3/8" to each valve
Power Required
None (gravity fed only)
Reservoir Height
Minimum 6" above highest valve
Fill Depth
1" per cycle, plant-controlled refill
Expandable
1 to 100 pots from a single reservoir
Included Root Control
Root Control Disc in every pot
How the system works
1
Connect the reservoir
Attach the filter and inline tap to your reservoir (hard tank or FlexiTank). Run 3/8" pipe from the reservoir to your first pot, then tee off to additional pots. Raise the reservoir at least 6" above your highest AQUAvalve5.
2
Fill the pots with medium
Place a Root Control Disc at the bottom of each 6.6-gallon pot (or an AirBase if using AirDomes). Fill with your chosen medium. A 50/50 coco-perlite blend is the standard recommendation. For heavier soil mixes, add an AirDome for root zone oxygen.
3
Hand water for the first 2 to 3 weeks
Top-water your seedlings or clones until roots are established and reaching the bottom third of the pot. Then open the inline tap and let the AQUAvalve5 take over. Do not top-water after this point.
4
Keep the reservoir topped off
Refill when the reservoir reaches about one-third full. Never let it run completely empty. If the reservoir empties, air enters the lines and the AQUAvalve5 can lose its vacuum seal, which is the most common cause of system failure.
Tips
Top 10 tips for growing with AutoPots
In the box
What ships with each system size
Included with every XL system
- 6.6-gallon round plastic pots (1 per pot count)
- 1Pot XL grommeted trays and lids (1 per pot)
- AQUAvalve5 (1 per pot)
- Root Control Discs (1 per pot)
- 3/8" pipe, inline taps, tee and cross connectors
- Reservoir with filter (size depends on variant)
Available system sizes
- 1Pot XL: 12.4 gal reservoir
- 2Pot XL: 12.4 gal reservoir
- 4Pot XL: 12.4 gal reservoir or 25 gal FlexiTank PRO
- 6Pot XL: 25 gal FlexiTank or 60 gal FlexiTank PRO
- PRO versions: Include AirBases, AirDomes, and Propagation Domes
- No Tank option: 4Pot XL available without a reservoir if you have your own
- Add-ons: AirBase Round, AirDome Kit, PotSocks, Expansion Modules
- Need an air pump? Browse air pumps and accessories (required for PRO systems to power the AirDomes)
Not sure which size to start with? For a 4x4 tent, a 4Pot XL gives you one plant per corner. For a 2x4, start with 2Pot XL. Call or email us: 716-217-0353 / [email protected]
Questions
Frequently asked questions
No. You connect the pipe from the reservoir to the pots using push-fit connectors, place a pot and tray at each station, and open the tap. There's no wiring, no programming, and no calibration. The AQUAvalve5 handles everything from that point forward. Most people have the system running in under 30 minutes.
Yes. The AQUAvalve5 and its 3/8" fittings were specifically designed to handle liquid organic nutrients. The wider bore practically eliminates the blockages that plagued the older 1/4" systems. AutoPot recommends using their systems with AQUAvalve5 fittings for constant organic feeding. Earlier model valves with 1/4" pipe cannot handle organics reliably.
The PRO version includes an AirBase Round, AirDome Kit, and Propagation Dome for each pot. The AirBase replaces the perlite drainage layer at the bottom of the pot. The AirDome connects to an air pump (sold separately) and pumps oxygen directly into the root zone, which improves nutrient uptake and root development. The Propagation Dome fits over the pot and creates humidity for young plants during establishment.
That depends entirely on your reservoir size relative to your pot count and how much your plants are drinking. A single plant on a 12.4-gallon tank in veg can go well over a week. Four large plants in flower on the same tank might need a refill every few days. The rule is simple: never let the reservoir run empty. If air enters the lines, the AQUAvalve5 can lose its vacuum seal and stop reopening.
The XL pot gives roots nearly 70% more volume than the standard 3.9-gallon AutoPot. More root space means larger plants, better nutrient buffering, and less chance of the medium drying out too quickly under intense light. If you're growing in a 4x4 or larger tent and want to maximize plant size, the XL is the right choice.
Yes. Bottom-fed systems don't flush excess salts the way top-watering does, so maintaining proper pH in the reservoir is important. Target 5.8 to 6.2 for coco and hydro media, or 6.0 to 6.5 for soil blends. Check and adjust pH each time you refill.
If you receive a defective or damaged unit, email us a photo at [email protected] and we'll make it right immediately: replacement or refund, your call. For change-of-mind returns, we accept returns within 30 days for items in new, resalable condition. If you're not sure whether this product is right for your setup, call us first at 716-217-0353. We'd rather answer your questions before you order.
Happy Hydro has been selling growing equipment since 2006. We've carried AutoPot for years because the systems work great and customers who buy them leave happy. Have questions before you order? Call 716-217-0353 or email [email protected]. We're easy to reach and happy to help!
Questions? We're easy to reach.
Happy Hydro has been serving growers since 2006. Call or email us before you order, after you order, or any time something comes up. When you're happy, we're happy.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
A Perfect Finale to Off-Campus and Briar U
Format: Paperback
The Legacy was everything I hoped for and more—a perfect conclusion to Elle Kennedy’s Off-Campus world. It felt like catching up with old friends and seeing how far they’ve come since we first met them. I laughed, swooned, and even teared up at times—it’s such a satisfying send-off for a series I’ve loved so much.
One of the best parts of this book is how we get to spend time with each of the beloved couples:
Hannah & Garrett – Still as sweet and solid as ever, proving that their love is built to last.
Grace & Logan – Fun, flirty, and full of chemistry, but also showing real growth in how they handle life’s challenges together.
Allie & Dean – Emotional, heartfelt, and just as fiery as they’ve always been—Dean never fails to make me smile.
Sabrina & Tucker – Tender, mature, and grounded, yet still so full of love. Their storyline was especially touching to see.
Elle Kennedy weaves their stories together seamlessly, balancing humor, heartfelt moments, and romance. Each section gives closure while still keeping things exciting—it’s like getting four mini love stories wrapped into one beautiful package.
I highly recommend reading The Legacy after finishing both the Off-Campus and Briar U series. It brings everything full circle, and you’ll appreciate all the cameos, callbacks, and little details so much more. Plus, it’s the perfect lead-in before starting the new Campus Diaries series, since you get that emotional closure first.
Overall, The Legacy is a heartfelt, fun, and incredibly satisfying finale that left me with a huge smile. If you loved the Off-Campus or Briar U books, this one is a must-read.
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Reviewed in the United States on September 2, 2025
★★★★★ 4
The Legacy
Format: Kindle
I had so much fun with this book! Getting to see every couple again and see them navigate through their challenges in their unique, funny ways. Loved it! Tucker is still my favorite guy. Also loved how they made this like a twisted sisterhood of the traveling pant’s story. So funny.
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Reviewed in the United States on June 8, 2026
★★★★★ 3
Off-Campus Conclusion
Format: Kindle
This review is one of the hardest ones I've ever written. The Off-Campus series is without a doubt one of the best series I've ever read. I have loved these characters, their stories, and the growth we've seen along the way. I love the love they all share.
A quick refresher of the 4 previous books and how I rated them:
The Deal - Garrett and Hannah - 5/5 (10/5 if it were an option.)
The Mistake - Logan and Grace - 5/5
The Score - Dean and Allie - 5/5
The Goal - Tucker and Sabrina - 4/5
I was so excited about this book! A glimpse into some of my favorite characters, and where are they now. But, as much as it breaks my heart to say it, this book fell flat.
First, let's talk about the pros.
1. Throughout the first four books, one of my favorite parts was the bromance and friendships between Garrett, Logan, Dean, and Tucker. THIS BOOK DOES SUCH A GOOD JOB WITH THAT, AND OMG IT MAKES MY HEART HAPPY. Their friendship is front and center and I loved every part of it.
2. Logan and Grace's and Tucker and Sabrina's installments in this book are the best in my opinion. I do wish that the rest of the gang could have been there for Logan and Grace's wedding, but it was oddly fitting for them.
3. This book is laugh-out-loud funny.
4. I love, love, loved watching Sabrina fighting for her man when he got arrested. Like yes, queen!
Now for the cons:
1. The biggest reason this book physically pained me is how Garrett and Hannah's part was written. It was so far out of character and literally broke my heart. Their story is the last one of this book. They're my favorite couple from the series, and the part of The Legacy I was looking forward to the most. And boy, it let me down and broke my heart. I actually went back and reread The Deal not long after finishing The Legacy because I was so confused by this part of the book. I had to go back and restore my love in Garrett and Hannah. In The Legacy, I feel Garrett does not have his life together, and he's mean, especially to Hannah. Like we get it, Phil Graham is the worst, but Garrett never used to take it out on Hannah or let it affect their relationship, but boy does it ever here. And Hannah hiding the fact she's pregnant from Garrett for so long?! What is up with that?? Ugh, it literally hurts to be writing this because I looked forward to this and wanted to love it so much but just didn't.
2. Allie could not have been more immature in their section. I get she was scared, but girlfriend, c'mon. When Dean Di Laurentis offers you a ring and his last name, you don't tell the man no.
A rating of the different couples parts of this book:
The Pact - Logan and Grace - 4/5 stars
The Proposal - Dean and Allie - 3/5 stars
The Honeymoon - Tucker and Sabrina - 4/5
The Legacy - Garrett and Hannah - 2/5
As grateful as I was to get to go back and hang out with the Off-Campus crew again, it just fell flat for me. I wish we could get a redo. See them all now. How's marriage going? How are the kids? How's work? Get to laugh it up with the gang again, and fall in love with the love they share all over, especially Hannah and Garrett. I feel this book lacked the finality and closure this beautiful series deserved. Truthfully, it would have been better off without this installment altogether (Which I literally HATE to say.)
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Reviewed in the United States on January 20, 2023
★★★★★ 5
LOVED THIS BOOK!!
Format: Kindle
*NO SPOILERS PART OF MY REVIEW*
I was eagerly anticipating this book ever since I learned it was coming out! I watched so many TikToks about this series and it made me feel so validated in my obsession for the Off Campus series and the OC couples. Therefore, I could not wait to read The Legacy as soon as it came out. I refreshed my Kindle app and there it was! I read all night, and slept for maybe 1 hour but I finished the book within 12 hours of it being released. I was SO pleased. This book was fabulous. Though it is 4 novellas (one for each couple) Elle Kennedy did an amazing job of weaving the four stories together and making it seamless. I really appreciated the continuity throughout the whole book. Seeing the group's dynamic was a total highlight of this book. I absolutely loved that we got to see their messages in the group chat and see how their friendships have stood the test of time and distance after their college days are over. I LOVED seeing the mentions of other characters in the Briar U/ Off-Campus universe as well. It reminded me of why I love this series so much. One thing, not a real spoiler but the epilogue is only about one couple, not all 4 like I had hoped and expected. I really hope we see more from the Off-Campus/Briar U universe in the future. If you love this series, you will really enjoy this book.
I HIGHLY RECOMMEND READING THE WHOLE SERIES. IN ORDER. INCLUDING THIS AMAZING BOOK.
****CAUTION SPOILERS AHEAD****
I appreciated that Elle Kennedy added more to Grace and Logan's story given that a version of it was already published 2 years ago (?). I really liked their story. At first I was a little annoyed that it ended on sort of a cliff hanger, but once I read the whole book, it made sense because other novellas in this book ended the same way.
Allie and Dean are my favorite couple in the Off-Campus series, followed by Hannah and Garrett. Allie and Dean's story in this book was great. I really loved getting to see them together again. The main conflict/ problem in their story was surprising to me. Allie's hesitation about engagement, wedding, babies, seemed a little bit uncharacteristic of her. She is SUCH a hopeless romantic, that seeing her be apprehensive about all of those things was confusing for me as a reader and a fan. But overall, I really enjoyed seeing Dean and Allie again. I love Dean so much. He is such an innately good person and so is Allie. I'm sad that there was no "glimpse into the future" for A&D in the epilogue because I would have LOVED to see them start a little family and maybe name their son Beau since Beau Maxwell was such a big part of their story. Sabrina and Tucker's story was also great. I appreciated that the author gave them a conflict in this book that in my opinion was never really resolved/addressed in The Goal. Their communication skills as a couple was beyond bad and frustrating! Tucker's admission to Sabrina that he is unhappy in his job coming as a surprise to Sabrina was bizarre. I enjoyed seeing them as parents to a toddler, so cute! Finally, Hannah and Garrett. The original Off-Campus couple. The people that started it all. I appreciated the premise of their novella, but bringing Garrett's abusive father back into the storyline, but only in a novella was unfair. There is SO SO SO much to say and unpack with regards to that. Shoehorning it into a brief novella was frustrating as a reader because it felt like that needed to be a whole full-length book itself. And Hannah holding off on telling Garrett about the pregnancy was also strange and unlike them. Garrett switching his opinion so quickly about being a dad was way too rushed. I feel like they were a couple who was pretty good at communication so seeing how Hannah handled this situation in this book was surprising. I would have really loved to see Garrett acknowledging that he has a lot of childhood trauma to work through and process in therapy! That would have been some real character development for him. Also, the lack of a wedding for them was upsetting because I feel like they deserve that and as a reader, I would have loved to see thatI!! Lastly, The epilogue was also a bit of a let down as I expected it to be a flash forward for all 4 couples, but it was just for Hannah and Garrett and it wasn't really a flash forward at all.
*END OF SPOILERS*
READ THIS BOOK!!! THANK YOU ELLE KENNEDY!!!!
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Reviewed in the United States on September 22, 2021
★★★★★ 4
Epilogues that left me wanting more
Format: Paperback
Book Review *minor spoilers*
3.5 stars
I absolutely ADORE the Off Campus series by Elle Kennedy. Every book was fun, spicy, and dealt with real world problems, but with happy ever afters of course!
I was SO excited to read The Legacy. An extended epilogue book dedicated to these characters?? Yes, absolutely love that idea. While it was very fun catching up with our favorite couples and seeing where they're at 2 years after their stories ended in their prospective books, I felt a little let down by most of them.
I think my favorite epilogue story of the 4 couples was Grace and Logan. They kicked off the book with a bang. There was humor, emotions, spice, more humor. Plus the elopement!! I only wish we could have seen that part actually play out instead of a cliffhanger and then hearing about it through other characters later on.
Dean and Allie. Gosh I loved this couple so much; their book (The Score), was my favorite of the original books. But Allie's character frustrated me so much when she didn’t want to accept Dean's proposal! Come ON girl!!
Sabrina and Tucker. Their book was my least favorite of the original books, largely due to the plot focused around her pregnancy. Pregnancy tropes are just not my jam. And again, least favorite epilogue couple. Tucker opening two successful bars in Boston within 2 years - wildly unrealistic. Sabrina graduating Harvard Law while pregnant and raising her daughter; somewhat more realistic. Their story in the epilogue was entertaining, but it just didn’t do it for me.
And Garrett and Hannah. My OG favorite couple. I loved their epilogue. I did not love that Hannah was so afraid to tell Garrett about her surprise pregnancy. But her reasoning was *somewhat* understandable. I will read anything I can get my hands on about this couple. But I just wanted MORE. More with the storyline about Garrett going public about his father's abuse. More about Hannah's career. More about G and H being parents - tell me about their kids! At least what are their names!
Overall it was a fun way to wrap up the series. While I felt left wanting more, it's safe to say I probably wouldn’t ever be fully satisfied. Can Elle Kennedy please just write endless books about this characters? K, thanks bye!
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Reviewed in the United States on September 14, 2022