Pouring measuring jug/pot funnel (pool chemicals)

I was measuring out granulated chlorine and other chemicals on the kitchen scale in a pot, pouring them into a big mixing bottle with a funnel, mixing and putting into the pool. I drew up this little pot to do all the jobs in one; there are a series of steps in the inside you can pour in chemicals up to which ever line you need, then pour straight into your mixing bottle, no mess, no scales, not pots and funnels, just the one thing!

I printed it with a little bit of support just inside the l