A note from BuildASoil

Over the last 13+ years, we've grown into a much better company — and a lot of that growth came directly from our critical reviews. Every 1, 2, or 3-star review on this page taught us something. New formulations, better packaging, improved shipping, clearer instructions, stronger customer support — almost all of it traces back to a customer who took the time to tell us what wasn't working.

If you haven't tried BuildASoil in a while — or you tried us early on and it didn't go great — we'd genuinely love another shot. We get better every year, and we have the receipts to prove it. See what's new at buildasoil.com →

Showing 276300 of 453 critical reviews

Alexander M.
★★☆☆☆VerifiedApr 3, 2022
I ordered three of the green gamma seal bucket lids and three of the heavy duty buckets as suggested by BAS. The problem is the bucket is slightly too big for the lid ring. I’ve tried a heat gun to try and get the last bit in but it’s not enough. When I finally got the lid almost on I checked and the gamma seal ring that you put on first completely spilt. I assume on the right size bucket they’d work great. However they didn’t fit the heavy duty grey buckets that BAS sells
on Gamma Seal Bucket Lids
Reply from BuildASoil
Crazy we use them all the time. I stand above and push on both sides with straight arms using my body weight. They are a pain, but we want them tight. Did you create a support ticket? I'd like to help! Do you think the heat gun messed with it? Either way let us know.
Jason D.
★★★☆☆VerifiedMar 29, 2022
Haven’t used it yet. No directions on how to use the product.
on BuildASoil - Wettable Sulfur
fred A.
★★★☆☆VerifiedMar 17, 2022
The pumice was OK, but there were not enough smaller particles in the 3/8" x 1/4 " ! cu. ft. bag. I tought that I would get somewhere around a 50/50 mixture, and the pumice I received was almost entirely the 3/8 " size.
on Pumice
matthew f.
★★★☆☆VerifiedMar 15, 2022
not the best or easy to use bottle. Product seems the same.
on BioAg Ful-Power Fulvic Acid
Caesar
★★★☆☆VerifiedMar 13, 2022
I do not recommend this product I have tests proving it drops PH way more anyone would ever think. Ruined a batch of seedlings I grown for years and no issues until this. Test your PH after adding or throw in trash waste of money up to you to me it’s not worth adding into the water could kill microbes 🦠 how drastically it drops PH when added you must use 7.5ph then use Q sparingly as a PH down 😂
on BuildASoil Quillaja Saponaria Extract Powder 60%
Reply from BuildASoil
Yo! It's only 1/8tsp per gallon. Your test is like 10000 times overkill. Besides that, the buildasoil way does NOT include PH'ing your water. Hope that helps. This absolutely will not ruin any seedlings.
Deven D.
★★★☆☆VerifiedMar 13, 2022
So the product does it's primary goal well in making the water "wetter" as they say. That's what got the 3 stars. However, I picked this product up to help with a fungus gnat issue. BAS recommended using Dr zymes to get rid of them and the Q to keep them away. I did just that, 2 soil drenches of Dr zymes and have used the Q for each watering since, allowing for the soil to fully dry up before watering in 1 gallon to each 5 gallon pot, no runoff. So I don't believe I'm over watering anymore.. So while the product does act as a good wetting agent, I really haven't noticed any benefit in terms of IPM or plant health/vigor since adding it in. And in that regard, I'm definitely a bit disappointed. It's also a bit of a pain to use because it's such a good wetting agent. The foam will overflow well before you can get 2 gallons into your sprayer. This is definitely a good problem, but still kinda frustrating to have to pause and wipe away foam over and over, making the watering process take much longer, for again...seemingly not much benefit or reason.
on BuildASoil Quillaja Saponaria Extract Powder 60%
Joseph K.
★★☆☆☆VerifiedMar 10, 2022
Won't use this guy again for interpretation. I pretty much explained that I was doing a no-till organic living soil. Was given a bunch of recommendations for chemicals. Don't think he bothered to read my description of my setup.
on Soil Test Interpretation
Natural Farmin D.
★★★☆☆VerifiedMar 3, 2022
Right when I opened the bag I can see many seeds that were unmilled(no big deal). As I looked closer I can see these unmilled seeds were indeed obviously not sprouted so it got me thinking of the quality/germination rate. Being the bag was milled it is impossible to find out so this is purely just my scenario not a bash. All this being said I grinded them down further into a cup of water and threw it into 10 gallons of water, bubbled it and 10 hrs later fed my plants/seedlings with it and the next day had immediate results so the enzymatic potential is great.
on Sprouted Hemp Seed
Natural Farmin D.
★★★☆☆VerifiedMar 3, 2022
Used this product last year milled and this year got it unmilled. When I opened the bag right away I can tell not one seed had ever been sprouted in the bag. This was not a big deal to me besides a bit of time lost but I can sprout the seeds myself and it was 20$. What was confusing and disappointing was the support team. I got no help but an offer for 10% off which is nice but not if I'm confused on the integrity and quality put into the product. I decided to document it all as well but hoping for further clarity and support on the gnarly barley before posting this anywhere else. Thank you.
on Clackamas Coots Official Gnarly Barley - Artisan Sprouted Seed Blend
Reply from BuildASoil
Seed sprouts from a malting house are done for peak enzyme activity!!! This means they are barely sprouted under very specific temperatures and hold periods. Then they are dried. After this is done the enzymes are peaked and ready. Hope that makes sense. Some seeds can even Re-Sprout after this depending on the variety. I promise they are all professionally sprouted and we pay a lot for this service. If there really is an issue we want to know about it right away and hold our suppliers accountable. Did you get to the bottom of this?
D F.
★★★☆☆VerifiedMar 2, 2022
I was pretty underwhelmed by this product. It seemed like it was almost pure peat moss, with very little, if any moisture in it upon arrival. I was hoping to get some extra biology and maybe get lucky with some insects soil but I'm not holding my breath on either of those. I should have scoped it before application to see if the visual inspection matched the microscopy, but I just wanted to be done with it after the initial disappointment.
on Colorado Worm Company Premium Vermicompost Worm Castings
M G.
★★☆☆☆VerifiedFeb 27, 2022
I spent $120 on 3 fans and every single one broke! They stopped oscillating & the fan stopped spinning. If I balance them right they will partially work when not in oscillating mode. I have opened one fan and partially modified the bottom gear to allow it to kind of work at almost full power, but its really a Huge flaw in the design. (They didn't even last 1 grow cycle) Last time I posted this review BAS took it down & I'm not sure why. I have proof of purchase & do not want a refund, all i ask is other people looking to buy this product know what their in for. All this being said these fans are some of the strongest I've used at this size, definitely stronger than the 6in Hurricane fans. And I after some modifying I will hopefully be able to use them in my garden.
on Clip Fan
Dave
☆☆☆☆VerifiedFeb 14, 2022
This trellis should really have a warning in the description to not use for cannabis. Thousands of loose strands of fiber blew all over the room when I took it out of the bag, decided against using it at all as these loose fiber strands are visible all over the trellis and clearly would have ended up getting stuck all over my medicine once it started producing trichomes. This trellis would be great for edible veggies or any sort of ornamental, but for medicinal flower you’ll want to avoid this.
on Conscious Gardeners - Jute Trellis Netting
Jebediah S.
★★★☆☆VerifiedFeb 3, 2022
I thought my tap water with a low ppm of 55 would work in this humidifier given that it features some filtration but to my disappointment this unit spreads a film of white dust everywhere with tap water. I would only recommend distilled or R.O. water through these units, if you run an RO filter and don't mind the water usage it won't bother you. The unit is unacceptable with tap water especially if using around flowering plants or drying product. I am now looking for an evaporative cooling humidifier as I have read that those do not have issues with spreading white dust and film but perhaps I should be running RO water regardless of the unit? Either way if the evaporative cooling units run cleaner and less misty with no chance of any sort of film/dust production I will take that over this.
on BuildASoil Humidifier
Richard G.
★★★☆☆VerifiedJan 18, 2022
Good soil, but was a little dried out.
on BuildASoil Potting Soil Recipe 3.0
Kris E.
★★☆☆☆VerifiedJan 17, 2022
Once everything is finally hooked up it runs fine but there is a lot of things that should have been in the instructions that just wasn't! Very horrible instructions. Also sometimes just soaks the wall and then floor. It just needs the perfect hook up and placement and should state that in the manual.
on 75 Pint Commercial Humidifier
Davis W.
★★★☆☆VerifiedJan 13, 2022
They seem to be pretty good. Not as great as I was expecting though.
on #1 BuildASoil Worm Castings
Joshua S.
★★★☆☆VerifiedJan 10, 2022
Nice Glasses but product arrived with A scratch in the lense.
on Culitvator FX - Full Spectrum Grow Glasses (LED, CMH, SUN)
Charles
☆☆☆☆VerifiedJan 9, 2022
The sprayer is heavy duty and does an awesome job in the garden. And if I used it for its intended purpose in concrete i would give it 5 stars. I’ve had it for like two years now The paint is flaking away and the steel is starting to rust. Buy the stainless steel version I wish it was available when I was in the market for one
on Chapin 6-4627 Seal And Gaskit Kit
James
★★☆☆☆VerifiedJan 5, 2022
My Mail Lady handed me this package in a bag bc it leaked powder all over everything and the bag had a giant hole in the bottom. Either from being jammed into too small a box or the goons at the USPS mishandled it, but the box isn’t beat up so I don’t know if this can be blamed on the USPS. Maybe put it in a bag.
on Oyster Shell Flour
Doug C.
★★★☆☆VerifiedJan 1, 2022
Overall the unit works well, however, it would be nice if it could be controlled by the Niwa. If manual control is your thing, then this unit is great. If you want to automate as much as possible, this would not be the unit for you.
on BuildASoil Humidifier
Mo
★★★☆☆VerifiedDec 21, 2021
The Niwa is a really cool tool but the software on iOS is a very buggy experience. It needs some fixes and updates for me to trust it without checking it daily
on Niwa Grow Hub+
Reply from BuildASoil
There have been some huge improvements to the software recently.
Cassidy
★★★☆☆Nov 25, 2021
Didnt like the interface and found it to feel outdated, seeing as most grow room equipment I have has sensors built in the niwas sensor didnt add much other than another reading, id really only use it to control lighting
on Niwa Grow Hub+
Ry B.
★★★☆☆VerifiedNov 24, 2021
Amazing light for veg and flower, plants love it. Unfortunately it’s super hot in the middle so I switched to LED to save my canopy in flower. For use in a warehouse or more commercial space this would be excellent.
on Iluminar Double Ended 630W CMH Light Fixture w/ Lamp
Kyle
★★☆☆☆VerifiedNov 21, 2021
It works, but if you leave it sitting for too long it will turn into a brick. The top dress doesn't have this problem, so use that instead
on BuildABloom - Amino Chelated Bloom Booster
Closet_Pharm M.
★★★☆☆VerifiedNov 15, 2021
My product has the consistency of axel grease which makes it a little harder to work with but the results speak for themselves. Worked great for a plant that needed an extra boost to get it through flowering.
on Eden BlueGold - Fusion Flower