Two pumps can be twice the failure rate, how do you monitor the improvement??? I did a lot of testing to get to the super cooler. THe photo shows how I gauged the flow rate with about 9 different pump and h/e designs. Gotta test test test and then check........Woody
https://www.crossfireforum.org/galle...hp/photo/21482

and the album:

https://www.crossfireforum.org/galle...y.php/cat/1070


PS two similar pumps would gain head pressure, but if the flow were not too restricted, the flow rate would not rise much. Id think two in parallel would increase the flow more, but Iam not tearing the lines out again for a whim, too much bumper to remove. Id rather be RC flying my strykers.