*PLUMBERSSTOCK EXPERT* responded:
Hi, there! Thank you for visiting PlumbersStock.com! We have sump pumps that range up to 34 GPM to 84 GPM, but that depends on the vertical height and horizontal distance and number of elbows making up the discharge system which also affects the pumping capability. For example; this Liberty Pumps 247 can provide a maximum GPM of 34 but at a 5' head, it provides a maximum GPM of only 30. Another example is the Liberty 293 Sump Pump which has a higher GPM at 78 on a 5' vertical height, 72 GPM at 10' and 58 GPM at 20' vertical height. As you can see, the higher the vertical height the lower the GPM gets, not to mention that there are also elbows and discharge systems to consider. We advise talking to your local plumber first before installing or purchasing a sump pump. Here is a list of our available sump pumps here at PlumbersStock.com! Hope this helps! Thank you and we hope to see you again here at PlumbersStock.com!