Yes Scotts Turf Builder Weed and Feed 3 label instructions say it needs to be applied to wet grass since this product has a post-emergent herbicide in it.
Scotts Turf Builder Weed and Feed 3 does state on the product label it can be reapplied after 30 days if needed.
Clover is best treated when it just emerges and using a liquid post herbicide will always give you better results than a granule that can just fall off the leaves and not contact weeds as well. Clover is also impossible to eliminate one it flowers.
Per Scotts Turf Builder Weed and Feed 3 the label, "apply when weeds are actively growing when daytime temperatures are consistently between 60-90 degrees." Please refer to the label or manufacturer for complete application instructions.
If you are referring to the Scotts Turf Builder Triple Action, you could apply the Scotts Turf Builder Weed and Feed 3 within a month of applying the 3 in 1 product. The Triple Action contains fertilizer with the weed prevention and you would not want to overload the lawn and risk burning it. Most fertilizer applications will last at least a month in the lawn.
Scotts Turf Builder Weed and Feed 3 should only be applied as directed to listed, established turfgrass species. You should avoid applications to landscaped areas including groundcovers.
You will want to wait 30 days in between applications of Scotts Turf Builder Weed and Feed 3 and Scotts Turf Builder Triple Action Built For Seeding.
