I use to do 14'x14' boxes with 8-10" deep of bedding at least.
My stalls were completely turned every day, dry and clean is a understatement.
Once I found a rhythm and comfortable doing my stalls it took about 15 minutes start to completion with fresh bedding added. Normal cleaning, about 10 minutes...
Oh... I wasn't a "kid" either but a late teen or twenties at the time so my size was considerably more and more strength...
As for doing them on a "volunteer" basis and still paying full-freight for lessons...
Don't do that to yourself or your daughter please.
She/you earn the right to a discount on what is paid for a lesson, some kind words of encouragement and since "the boss" isn't paying her who cares how long it takes!!
I think you are being taken advantage of with what you now disclose... your daughter is saving "the boss" a salary, and still paying full-price for lessons...."NO!"
Go back to going for lessons, enjoying your ride time and the "doting" instructor not the hag who has not a nice word for her free labor!!
Sorry...the golden goose just laid a BIG FART of an egg...
..yup, my opinion!
I'm ambivalent about this, to be honest. I guess I'm not super confident that her contribution is that valuable and I don't know how to ask for things. When she first started, I knew this BO had high standards and that she will have a lot to learn before being actually useful. There's training and supervision involved. It wasn't the right moment to talk about any kind of reimbursement.
Right now it takes her probably 20 minutes to do a stall, if not the whole 30--due to her not being as strong as the BO, and probably not having a system, and doing the same spots several times because she's worried she missed things. Daughter says she still can't sift as effectively and fast as the BO.
She does about 4-5 stalls on a good day. She'd gladly do more (and has done more) but if there's another helper there she get to the stalls quicker and to my daughter's disappointment (ha ha, seriously, she gets disappointed if she doesn't do enough stalls) she doesn't have more than 4 stalls left.
And then the BO walks into each stall and does a light sifting to check it. And it is never a "good job."
So realistically speaking, at the moment my daughter "saves" her what, an hour of work? Not much. I'd feel awkward to even ask for any kind of reimbursement for this. Yeah, technically every couple of months she could have a freebie lesson. I'm not comfortable even mentioning this.
I think if the BO is a decent person eventually she might offer something like that herself--when daughter is actually able to be of more help. On the other hand, if her MO is to be perpetually somewhat critical, then maybe this is how she safe guards herself from ever giving a free lesson--the volunteer contribution is never up to her standard. Tricky.
I printed out your steps (thank you again!) and I'll see what daughter says about her own method and how it compares, and we will see if the BO will notice the difference.
Then we'll reassess. Daughter loves many aspects of being there, loves learning new things, just loves being around horses. The only problem is that she's becoming insecure about whether she's doing a good job, and desperately wanting to do a better job.