The screw in ones are for harder plastic like for a bucket. I use both. I an using the push in (grommet style) in both buckets and milk jugs. I use the screw in ones for heavier and thicker plastic.
You know the whole in the lid sounds like a grate idea. I am pretty ingenious but you got me on that one.
I just got an order for some of these from Ebay.. now they came from china and the design is very similar and they sold them 20 in a set. So I bought 2 sets. even with shipping they...
Hi,
I use these
http://www.farmtek.com/farm/supplies/cat1;ft1_poultry_equipment-ft1_poultry_watering_systems;ft1_hoses_nipples.html
I use these on milk jugs (they are cheap) and the nipples are $1.99 so not bad investment. just remember to leave the lid off the milk jug or they get the...