I looked into that acrylic but was lucky enough to pick up a full spray bar kit for my aqua manta for £5 from maidenhead aquatics . I added that to the one I already had and now it will run the full length , but I tested it the other day in the bath and it has the same pressure all the way along the whole length of the spray bar , was worried about it dying it off at the other end . Im not sure what your planning but I am also putting minimal media in the filter to help with flow , just going with a course and fine sponge, Alfa grog and some of those plastic scrubbies from wilks . Oh and maybe some Purigen .
Thought I would share
Cheers
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