well jay, I was thinking........
how much turbulance do you think is inside the waterpump housing where the impellar is?????????
Why not get all that turbulant surging water right inside the block.
Where it is needed most. Now what I have designed is the same size imellor that is on a 120 GPH pump. So with a strong 12 v motor it should still pump more then adaquite volume, and it is contained inside the block. Now if it works any better, or at all, is yet to be seen, But hey................. If no one else is gonna do it... I might as well.