Bulkhead fitting for 5 gal?

Anyone know what size It should be? Just looking to do some drain to waste hempy (coco with floraflex drippers)

Trying to connect tubing to flow down to a collection tote for veggies. Nothing to big, just 4 5 gallon buckets.

You shouldn't require a bulkhead for that, just some grommets and barbed fittings. 3/4" usually works well for what you are trying to do.

I just snagged 2 bags of grommets off amazon

https://www.amazon.com/gp/product/B008UFAI9K/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

So like 3/4 in tubing/barbed fitting or 1/2?

3/4 to match the grommets. 1/2" tends to plug up too easily. 1 inch is probably overkill.

Probably have to drill 1" holes I think. Maybe a litlle bigger, step bits work great. You can also clean up the hole with a deburring tool.

https://www.amazon.com/L-anan-Deburring-Remover-Plastic-Aluminum/dp/B07GS7TJLZ/ref=asc_df_B07GS7TJLZ/?tag=hyprod-20&linkCode=df0&hvadid=312195635017&hvpos=1o4&hvnetw=g&hvrand=5124084255526521452&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9057211&hvtargid=aud-801381245258:pla-570634988836&psc=1