One thing caught my attention with this.
You already have drip tape under your plastic mulch.
You can tie a better line to the drip tape and use the tape to pull the better line under the mulch.
I would like to add pumps can get complicated.
They will look the same but be different due to the configuration of the impeller.
They will have various psi and gpm ratings.
But nothing you cant get around with a little research.
I would suspect you would want something that would put out around 10 gpm at no more than 25 psi.
That would be a small pump.
In Seattle now waiting on yet another plane to get home.
Worth