This pump: https://www.amazon.com/dp/B078N2JDQW?ref=ppx_pop_mob_ap_share

This hose: https://www.amazon.com/dp/B07PR9D6GH?ref=ppx_pop_mob_ap_share

The hose greatly speeds up drain time. I can empty a 400 gallon tub in 15 minutes with this combo.