just clocked these quantum hydro systems on ebay, cheapish, assuming the price probly reflects the quality.
Any one used one? or know anything about em'?


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I havent got one, so cant comment on how good/bad they are.

One things that does strike me looking at the photos though is how do you check/refill the nute tank withought lifting the lid? If you have to lift the lid, you will disturb the roots, which is not something I would want to do every day.

Also, the white plastic tray things above the water look a bit on the small side - your roots are going to quickly outgrow them. The system might start off as a sort of flood/drain or NFT (I cant see if the water is supposed to be on all the time, although I doubt it), and then turn into a sort of DWC as the roots outgrow the trays and dangle into the nutes.

The top cover being white isnt exactly ideal either, unless it is very thick and lightproof. You need to keep the root area dark, or algae will grow in the tank, which is something you definately dont want,

Finally, it doesnt look too easy to use an airstone in the tank, at least not without drilling a hole to accomodate the airline.

Just my 2p worth, but like I say, I havent got one and am only going by the photos so all the above could be

there is a flappy hole/access type thing at the far end, its on the pic that i lost somewhere, but as for airstone access, im not sure, theres access for the pump somewhere so maybe theres room for a bit of extra tubing.
I agree the top does look a little flimsy.

I've had a look at the fleabay advert. It certainly is cheap.

Also did a search on uk420, but can only find one thread that mentions it. Having said that, the posts in the thread dont complain about it too much (although some complain its difficult to drain the tank).

Here is the post clicky

Looking through the post, if you do buy it I wouldn't put seeds directly into it (make sence - most people start in 1" cubes for seedlings, then move on to 4" and keep hand watering until the roots show before putting into the system), and I wouldn't put 8 plants in there unless doing a SOG.

Yep - been using one of the 8 planters successfully & happily for 2 years.


There's an inspection hole at one end of the system. Otherwise it's possible to lift-up a corner of the lid without disturbing the plants too much.


That's all correct - at about 3 weeks into flower it's necessary to drop the EC right down to DWC levels as, by that stage, the majority of the roots are submerged (or at least that's my theory). The water is supposed to be on 24/7 (the trickling helps to keep it oxygenated, although I've also watered intermittently when necessary without problems).


Agreed - although this is true of the correx tops of many NFT systems too - I think quantum made the tops lightproof after a while.


You simply run the airline through the inspection hatch, although I've not really notices any improvement in yeild using an airstone in there.


Try these (the first 2 are the most general):
http://www.uk420.com/boards/index.php?show...uantum&st=0
http://www.uk420.com/boards/index.php?show...hydro&st=15
http://www.uk420.com/boards/index.php?show...=106978&hl=
http://www.uk420.com/boards/index.php?showtopic=39586


Ideally no, but I've grown from seed in the system 3 times - it's slightly easier to remove plants compared to NFT because each plant sits on it's own support.

Basically the system is fine IME, I'm not looking to change mine...

They're robust systems that are quite self-contained (ie you don't need a lot of extras)

Few people use them, so it's tricky to find instructions for their use - the main quirk IME is that the EC requirement changes about 3wks into flowering. However - you'll find all you need in the links above.

G'luck

Stan

ive seen these in 1 of my local grow shops. said he was selling um on ebay. so if its the same ones mate they looked tacky and shit in reality. id sooner get an autopot system for arnd the same type of money! only trying to help pal

cheers for the links stan, couldn't find anything when I looked.

They are good systems....I've used them on and off for years and had one of the original models.

I've found them very easy to use....the pH and EC are very stable for a recirculating system and they yeild well.

Airstone makes no difference.
They run best half to three quarters full.
Grow 2 monsters on there, 4 mid size or 8 SOG.

I put an additional cover of B/W Sheeting over the top as the lids do let a bit of light in.

I've got 4 NYCD about 2 weeks in to flower on mine ATM....I'll post a pic later if I remember.

ATB

cool FAI, you do that mate, its cheaper than a wilma, so if may well get one of these instead if I can convince myself ill get as good results. Its just iv only used rockwool twice before, and were both disasters!

Here are the pics I promised of the current grow on my quantum.

You might also be able to see 2 plants to the right grown in coco, 6l.
I have topped and fimmed the quantum plants - they move quickly
They are all NYCD at 14 days in to flower.

ATB

ETA - the unit is the 'new style' 8 planter. there are 4 plants on the unit...staggered alternately along the tray.

One more for you

cheers FAI

top banana

hi, I used one for about 18mnths and agree with FAI, ec and ph are more stable than with nft. Although I found mine to be not so light proof and got regular pithium. Plus you gotto change your water regularly or some of the plants get nute lockout.

very nice indeed FAI, would you say your plants grow faster/bigger/healthier in the quantum or in the coco next to it?