Before buying a sump pump, you need to find out what capacity is enough for you. Moreover, there are many reviews of different pumps on the Internet. About a year ago, I installed the pool that my children dreamed of. I spent a lot of time looking for a good sump pump. On my friend's recommendation, I looked up their comparison here: https://www.sumppumpadvisor.com/best-zoeller-sump-pump-reviews/ and for a good reason. Thanks to the information I learned there, I chose an excellent pump, the power of which is quite enough.