I bought a 75 gallon ready for fish setup off craigslist that came with a rena filstar xp2 and xp3. I got the whole setup for $200 but instead of coming with the pipe that comes in the box with the filters he had some PVC contraption made so he could use both filters at the same time. I plan on just using 1, the issue with this is with the pipes he has theres no way to fill the intake tube. Anyways i've been messing with it a lot, and i've got the canister 100% full, but no matter how I mess with it no water flow is coming out. Does anybody have any ideas? Or know where I can buy the intake tubes/pipes that come with it?