I run 1" tubing up to a 3/4" bulkhead with 3/4" locline on it. If I were you, I would try to run 1" all the way through.
I run 1" tubing up to a 3/4" bulkhead with 3/4" locline on it. If I were you, I would try to run 1" all the way through.
Right so it would be 2x 2inch overflow and a single 1inch return or would it be better to have 2x 1inch returns?
Two 1" returns that are each connected separately to one of two pumps.
Also, I would recommend a total of three 2" overflows, or two 1.5" overflows and one 2" overflow. You will use two as the main drains that will be tuned with a valve for siphon and the third will be the emergency drain in case one of the others gets clogged or the pumps get turned up somehow. The third overflow for an emergency drain is a must imo for a herbie setup. I get water flowing down my emergency drain every time I do a water change.
I think I'll go for the two 1.5" overflows and the 2" also would a gate valve be the best for siphon tuning?
What size pumps would you recommend if I got 2 one each for the return lines?
What size pumps would you recommend if I got 2 one each for the return lines?
Honestly, if you get the Jebao DCP pumps, I think regular pvc ball valves are fine.
For the pumps, I would recommend two Jebao DCP 12000's. They use a power supply connected to a controller and you can turn them up and down at the push of a button. The fine adjustability of them will make tuning the herbie overflows a breeze.
BRS did a test between 90* and two 45*. The results showed two 45* was not any less restrictive, and, in at least one case the single 90* had higher flow. IMO, get a pump that is rated higher and account for it that way. Gives you more flexibility as to how you want to run your (PVC) plumbing - for function and for aesthetics (if you care about that).
Thank you I will bear that in mind when I start getting the plumbing and see how it all goes together.
For reference to the thread and BRS video.
https://www.monsterfishkeepers.com/forums/threads/45-vs-90-pvc-turns.683195/
