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I am looking at building a small NFT system to test the viability of growing lettuce commercially for local consumption.

Investigating options for NFT. Right now I am looking at using 3"-4" PVC or ABS pipes.

When I was checking prices on these materials, I noticed a 4" x 2" eaves trough made of PVC. The flat bottom would be better suited to an NFT system, but I am not sure if this will be deep enough to grow the lettuce properly.

I am looking at growing Romaine and Butterleaf mostly (Though this may change).

Thanks in advance

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Is there a question here? – bstpierre Aug 29 '12 at 22:49
I am looking to find out if a 4" x 2" trough would be deep enough to grow the lettuce varieties mentioned. – Kray Aug 30 '12 at 14:03
I went to my local hydro shop yesterday and this will be more than suitable for growing lettuce. – Kray Aug 31 '12 at 18:29
up vote 2 down vote accepted

We provide commercial hydroponic systems and the channels that we use are made from virgin HDPE and are 2" X 4". The 2" depth is perfect for romaine and butterhead. They don't fall over and will grow from seed to harvest in about 6 weeks. Go to the American Hydroponics website to see the full line of commercial hydro equipment.

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Thanks Scott. Should things go well with the DIY system, I will be looking at moving into a commercial system. – Kray Sep 5 '12 at 16:23

I went to my local hydro shop yesterday and this will be more than suitable for growing lettuce.

share|improve this answer
can you inform us a bit about what they suggested? as it is now this answer is neither informative nor helpful to those that may come looking for the answer to this same question later – wax eagle Sep 4 '12 at 15:49
Since my question was "Is a 4x2" trough suitable for growing lettuce?" this answer is very informative and helpful to those looking for the same answer, which is YES. – Kray Sep 5 '12 at 16:21

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