I Figured out the issues. A 6110/6120 SWCG from Intex are rated at 1000 GPH flow rate. The new pump is rated at 1650 GPH flow. I looked at two other SWCG a 8110 rated at 1600 GPH flow and a 54601EG which is capable of 4000 GPH flow. I guess we will upgrade the SWCG to accommodate the new pump.