replaced pump .pump operates correctly but the volume of water that comes out of the jets is very minimal. i have a 99 spa crest 99-0426 . filter is clean and none of the hoses are kinked . i have bled all the air out of th system . all my efforts have been in vain . can some one suggest any thing else?

Can you list the Make/Model HP, SF, and Volts of the old and new pumps?

If they're the same, and you're sure the air is bled, open the union on the suction side of the pump and check the impeller for debris.