I'm looking for a peer check here on my pump size. I'm trying to set up a basement sump. Ran the 1-inch PVC to the basement today. With elbows, horiz, and elevation, I calculate 30-ft of head loss. My display is 90-gal. I plan on pumping out of a 60-g of sump water in the basement (including pipes), so that's 150-gal total. If I target 6x turnover, I need 900 GPH (15 GPM). I should get that easily with the 100RT, right? The pump curve has me at 18 GPM. Is there a chance I get something that's too big here? If so, how would I dial it down? Thanks in advance.