I am testing my new Johnson pump now...I will post the results in BB2k's thread. I get paid once a month -so I only ordered my UV-5 today. I think I will divide about 1/2 of my flow through it. I have a Quad Typhoon Res. which has 4 ports. I want a 3/4 suction line for my pump and have no problem (I hope) tapping the res. for the 3/4 line. I am thinking about parallel flow through the UV-5 and the other half bypassing it. The barbs shipped with the res. are 1/2 hose to 1/4 NPT (4124-8-4) with an ID of only .3720" --> and an area of 0.1087 in^2.
A 1/2" hose has an area of 0.1963 in^2 , and a 3/4 hose has an area of 0.4418 in^2 .
