Looking to replace an old cistern jet pump and bladder tank. Cistern is approx. 12' deep and near the pump. Current jet pump is 1/2 hp with a 33 gallon tank. There are 4 people in house with 3 full baths. Water pressure seems to be adequate (currently switch set at 30/50) but I am also looking to add a Watts (50 micron) whole house filter. I recently purchased the PK1A-LT with a 10 gallon tank but trying to decide between the Goulds J5S or the J5SH pump (1/2hp). Is the J5SH overkill or would that be a better choice over the J5S? Also, would it be better for the filter to be before the pump or after?